Ai Future Work

Respuesta correcta: B) exacerbate

• A) alleviateIncorrect. 'Alleviate' means to make something less severe, which is the opposite of what's needed.
• B) exacerbateCorrect. 'Exacerbate' means to make a problem or bad situation worse, which fits perfectly here.
• C) mitigateIncorrect. 'Mitigate' means to make something less severe, which doesn't fit the negative consequence implied.
• D) facilitateIncorrect. 'Facilitate' means to make an action or process easy or easier, which is not appropriate for a social divide.

Respuesta correcta: A) exclude

• A) exclude'Exclude' means to leave out or bar from participation, and the sentence describes a screening model that filters out people who never appeared in its training set.
• B) exploit'Exploit' means to use unfairly or take advantage of, and the clause is about candidates being left out rather than being used.
• C) expose'Expose' means to make something visible or vulnerable, and the sentence is about exclusion from a process, not about disclosure.
• D) excuse'Excuse' means to forgive or justify, and nothing in the clause describes absolution or a reason offered for someone's conduct.

Respuesta correcta: A) extended

• A) extended'Extend' means to make something longer in time or space, and the sentence reports the opposite of the promised effect: the working day grew instead of shrinking.
• B) intended'Intend' means to plan or mean to do something, and the clause reports a measurable outcome rather than an intention held by the proponents.
• C) attended'Attend' means to be present at, and the sentence is about the length of a working week rather than anyone's presence at an event.
• D) invented'Invent' means to create something new, and the clause says a promise had an effect on hours, which is a claim about duration rather than about origin.

Respuesta correcta: C) To admit a point, often reluctantly.

• A) To predict that something will happen.Predict refers to forecasting an event; the manager is acknowledging an existing limitation.
• B) To order someone to change something.Order expresses a command, but the manager is admitting a point rather than directing an action.
• C) To admit a point, often reluctantly.Concede means to acknowledge that a point is true, often when it weakens one's position in a discussion.
• D) To reject a claim as false.Rejecting a claim would mean denying the errors, whereas concede acknowledges that the system makes them.

Respuesta correcta: A) The chatbot changed the workers' tasks instead of replacing the workers.

• A) The chatbot changed the workers' tasks instead of replacing the workers.Correct. The text says the company kept all 120 workers and that they now handle difficult cases, so the chatbot changed what they do rather than taking their jobs.
• B) The chatbot caused 120 workers to lose their jobs.Incorrect. The text says the opposite: 'the company kept all 120 workers'. The fear of losing jobs is mentioned, but it did not happen.
• C) Customers prefer talking to a chatbot rather than to a person.Incorrect. The text gives no information about what customers prefer; it only says the chatbot answers simple questions.
• D) The new jobs are easier and less stressful than before.Incorrect. The manager says the work is more interesting 'but also more stressful', so the text contradicts the idea that it is easier.

Respuesta correcta: C) Checking the AI's mistakes made the writer think more carefully.

• A) The AI assistant wrote most of the essay for the writer.Incorrect. The writer states the essay was better 'not because the AI wrote it', which rules out this interpretation.
• B) The professor did not allow students to use AI tools.Incorrect. The first sentence says the professor allowed the AI assistant, with the condition of attaching the conversation.
• C) Checking the AI's mistakes made the writer think more carefully.Correct. The writer says the essay improved 'because I had to question everything it said', so verifying the tool's errors is what improved the work.
• D) The AI recommended useful books that the writer could not find in the library.Incorrect. The text says two of the recommended books 'did not even exist', which means they were invented, not simply unavailable.

Respuesta correcta: D) Because most of the material the assistants will review is in English.

• A) Because the training at the office is given by foreign teachers.Incorrect. The text mentions a month of training at the office, but it says nothing about who teaches it or in what language.
• B) Because the assistants will write their reports for clients abroad.Incorrect. The advertisement does not mention reports or foreign clients; the job is to review and classify images and texts.
• C) Because a university degree in languages is required.Incorrect. The text clearly says 'No university degree is required', so this reason contradicts the advertisement.
• D) Because most of the material the assistants will review is in English.Correct. The advertisement says applicants need good English 'because most of the material is in that language', which gives the exact reason.

Respuesta correcta: A) To criticise an alarming article and ask for more useful information.

• A) To criticise an alarming article and ask for more useful information.Correct. She calls the headline 'irresponsible' and ends by asking the newspaper to explain which skills will be useful, so she criticises and requests better information.
• B) To thank the newspaper for warning people about job losses.Incorrect. She does not thank the newspaper; she says the headline was irresponsible and caused fear.
• C) To explain how tractors are used on coffee farms today.Incorrect. The tractors are an example from her grandfather's time to show that predictions of job loss were exaggerated before; they are not the purpose of the letter.
• D) To announce that half of the jobs in Pereira will disappear.Incorrect. That is the claim of the article she is criticising; she argues that nobody can predict it with that precision.

Respuesta correcta: C) The analyst recommended retraining employees before introducing the AI tool.

• A) The analyst recommended to retrain employees before introducing the AI tool.Recommend does not normally take a direct to-infinitive complement; recommended retraining is the appropriate pattern here.
• B) The analyst denied retraining employees before introducing the AI tool.Denied retraining rejects a claim about an action; it does not report advice that the company should retrain employees.
• C) The analyst recommended retraining employees before introducing the AI tool.Recommend can be followed by an -ing form, and retraining accurately reports the proposed action as advice.
• D) The analyst promised to retrain employees before introducing the AI tool.Promised to retrain makes the analyst commit to performing the training, which changes advice into a personal commitment.

Respuesta correcta: B) The supervisor warned the staff not to upload customers' private records to the public chatbot.

• A) The supervisor encouraged the staff to upload customers' private records to the public chatbot.Encouraged reverses the message by promoting the action that the supervisor explicitly prohibited.
• B) The supervisor warned the staff not to upload customers' private records to the public chatbot.Warned the staff not to upload uses warn plus an object and a negative to-infinitive to preserve the caution against uploading.
• C) The supervisor admitted uploading customers' private records to the public chatbot.Admitted uploading describes the supervisor acknowledging a personal action, not warning the staff against it.
• D) The supervisor offered to upload customers' private records to the public chatbot.Offered to upload presents a voluntary action by the supervisor, which contradicts the instruction not to upload.

Respuesta correcta: D) had

• A) hasIncorrect. The sentence refers to a past sequence, requiring the past perfect in inversion.
• B) wasIncorrect. 'Was' does not fit the past perfect structure required by 'Hardly'.
• C) didIncorrect. 'Did' would require the base form of the verb, not the past participle 'been'.
• D) hadCorrect. 'Hardly had...' is a classic C1 inversion structure used for sequential events.

Respuesta correcta: D) Claimed attributes the assertion to the vendor without presenting it as an established finding.

• A) Claimed proves that the algorithm was biased.Claimed marks an assertion without establishing its truth; it does not prove the opposite assertion that the algorithm was biased.
• B) Claimed indicates that the vendor asked the auditors a question.Claimed reports an assertion, whereas asked would report a question or request.
• C) Claimed means that the audit had already verified the vendor's statement.The report explicitly says the audit was incomplete, so the wording cannot mean that independent verification had already occurred.
• D) Claimed attributes the assertion to the vendor without presenting it as an established finding.Claimed maintains a distinction between the vendor's assertion and verified evidence; confirmed would suggest that the assertion had been established.

Respuesta correcta: B) had

• A) has'Has' would give the present perfect, but the clause reports a past completed action followed immediately by a past consequence, which requires the past perfect.
• B) had'Scarcely had the model finished retraining than its accuracy fell apart'. The past perfect fixes the completed action that 'scarcely' denies as having fully happened.
• C) did'Did' would invert a simple past, but the participle 'finished' requires an auxiliary of perfect aspect rather than the do-form of inversion.
• D) was'Was' cannot invert before a past participle; the passive form would also contradict the active training described in the clause.

Respuesta correcta: B) should

• A) must'Must' is a modal, but the blank needs the inverted auxiliary that 'under no circumstances' requires, and a modal cannot follow the adverbial in a declarative inversion of this kind without another element.
• B) should'Under no circumstances should automated scoring replace'. A modal inverts exactly as the auxiliary of an ordinary verb does, so fronting 'should' produces the emphatic reading.
• C) would'Would' belongs to the conditional or the reporting sequence here, not to the emphatic inversion the negative adverbial demands.
• D) ought'Ought' takes 'to' plus an infinitive, so it could not fill the gap directly after the negative adverbial in this construction.

Respuesta correcta: B) had

• A) did'Did' with a bare infinitive would need 'no sooner had'; the participle 'gone' shows that the perfect auxiliary is required rather than the do-form.
• B) had'No sooner had the pilot gone live than complaints arrived'. The structure pairs a completed past action with the immediate consequence that followed it.
• C) has'Has' would give the present perfect and place the action in unfinished time, whereas 'no sooner ... than' needs a bounded past sequence.
• D) was'Was' cannot combine with a past participle in this active construction, and the clause clearly states that the pilot launched it.

Respuesta correcta: D) does

• A) do'Do' agrees with plural subjects, and 'a retraining programme' is singular, so the base form with 'does' is the correct inversion.
• B) have'Have' would give the perfect aspect, but the bare inversion with 'seldom' and a singular subject requires 'does' before the base form.
• C) are'Are' would be needed for a plural subject. 'A programme' is singular, and 'seldom' does not alter the agreement of the auxiliary.
• D) does'Seldom does a programme survive'. The singular subject takes 'does' and the main verb reverts to the base form 'survive'.

Respuesta correcta: A) The current strategy is directed towards the wrong objective.

• A) The current strategy is directed towards the wrong objective.Correct. 'Bark up the wrong tree' comes from hunting dogs barking at a tree the animal is not in, so it means putting effort into the wrong cause or the wrong solution.
• B) They are literally looking for something in the trees of Manizales.Incorrect. This reads the idiom word for word; nobody in the debate is searching any trees, because the phrase is figurative and describes a mistaken strategy.
• C) The approach is too noisy and aggressive.Incorrect. 'Barking' here does not describe loud or aggressive behaviour; the idiom is about aiming at the wrong target, not about the tone of the discussion.
• D) A new environmental project involving trees should be started.Incorrect. The speaker is criticising the current approach, not proposing a new project; 'tree' is part of a fixed expression and has no literal meaning here.

Respuesta correcta: A) The managers have not given the employees information about the changes.

• A) The managers have not given the employees information about the changes.Correct. 'Keep someone in the dark' means not to tell them something; her reply 'Not yet' confirms that the employees have no information.
• B) The office will turn off the lights to save energy.Incorrect. This reads 'dark' literally; the idiom is about information, and nothing in the dialogue refers to electricity.
• C) The training will take place at night.Incorrect. Diana says the training starts next week, but she gives no time of day; 'in the dark' does not mean at night here.
• D) The managers have already explained everything clearly.Incorrect. Diana begins with 'Not yet', which shows that the explanation has not happened, so this is the opposite of her meaning.

Respuesta correcta: D) The team needs to start the design again from the beginning.

• A) The team should draw pictures to explain the app to the client.Incorrect. This is a literal reading of 'drawing board'; the idiom has nothing to do with making drawings.
• B) The client has approved the app and the project is finished.Incorrect. The client found too many errors, and 'I'm afraid' introduces bad news, so the project is clearly not approved.
• C) The team should return to the office where they worked before.Incorrect. 'Go back' here is not about a physical place; the expression refers to restarting a plan, not changing offices.
• D) The team needs to start the design again from the beginning.Correct. 'Go back to the drawing board' means to start planning again because the first attempt failed; the many errors found by the client explain why.

Respuesta correcta: B) Everyone will learn how the new system works step by step, as a team.

• A) Julián must learn how to tie ropes to move boxes.Incorrect. This takes 'ropes' literally; the idiom refers to the basic knowledge needed for a job, not to real ropes.
• B) Everyone will learn how the new system works step by step, as a team.Correct. 'Learn the ropes' means to learn how to do a job or use a system; 'together' and 'don't worry' show the supervisor is reassuring Julián.
• C) The supervisor already knows everything about the robots.Incorrect. The supervisor says the robots are 'new for everybody', which includes himself, so he does not know everything yet.
• D) Julián will be fired if he makes a mistake with the robots.Incorrect. The tone is reassuring ('don't worry'), so there is no threat of losing the job in the message.