Present Simple Third Person

Respuesta correcta: A) Every morning Maria opens the small shop near the church at seven o'clock.

• A) Every morning Maria opens the small shop near the church at seven o'clock.Correct! In the present simple the third person singular adds -s to the base form, so 'Maria opens' agrees with the singular subject.
• B) Every morning Maria open the small shop near the church at seven o'clock.The verb 'open' keeps its base form, which is wrong after 'Maria'; the third person singular of 'open' is 'opens'.
• C) Every morning Maria are opening the small shop near the church at seven o'clock.'Are opening' is the present continuous. The present simple of this verb in the third person is 'opens', not a progressive form.
• D) Every morning Maria opening the small shop near the church at seven o'clock.An -ing form cannot be the only verb of a present simple sentence; it needs a helping verb such as 'is' or 'are' before it.

Respuesta correcta: D) Andres doesn't drink coffee in the morning.

• A) Andres doesn't drinks coffee in the morning.After 'doesn't' the verb returns to its base form, so 'doesn't drinks' carries a second -s that duplicates the one already inside 'doesn't'.
• B) Andres not drinks coffee in the morning.English cannot place 'not' straight before the verb; the negation needs the auxiliary 'does' plus the base form of the verb.
• C) Andres don't drink coffee in the morning.'Don't' is the form used with I, you, we and they; the singular third person needs 'doesn't' to agree with 'Andres'.
• D) Andres doesn't drink coffee in the morning.Correct! The negative present simple is built with 'does not', contracted to 'doesn't', and the verb keeps its base form after it.

Respuesta correcta: B) Does the technician repair the office printer every Tuesday morning?

• A) Is the technician repair the office printer every Tuesday morning?'Is' links a subject to a description or opens a progressive; a question about a simple action needs the auxiliary 'does'.
• B) Does the technician repair the office printer every Tuesday morning?Correct! The auxiliary 'does' agrees with the singular subject and the main verb returns to its base form, which is 'repair'.
• C) Does the technician repairs the office printer every Tuesday morning?The auxiliary 'does' already carries the -s of the third person singular, so the main verb must not add another one: 'repair', not 'repairs'.
• D) Do the technician repairs the office printer every Tuesday morning?'Do' is the auxiliary of the plural and of you and I, so it cannot be used with the singular subject 'the technician'.

Respuesta correcta: C) Yes, she does.

• A) Yes, she is.'She is' answers a question about a state, such as 'Is she a doctor?', and not a question built with the auxiliary 'does'.
• B) Yes, she works in a hospital.'She works in a hospital' replies to the open question 'Where does Lucia work?', so it does not match a yes and no question.
• C) Yes, she does.Correct! A short answer keeps the subject as a pronoun and the auxiliary as a contracted form of 'do': 'Yes, she does.'
• D) Yes, does she.Repeating 'does she' turns the question back into a question; a short answer must replace the auxiliary and the subject with a pronoun.

Respuesta correcta: A) My uncle grows coffee on a small farm.

• A) My uncle grows coffee on a small farm.Correct! 'Grows' is the third person singular of the present simple, formed by adding -s to the base form 'grow'.
• B) My uncle are growing coffee on a small farm.'Are growing' describes an action in progress right now, not a habit that repeats every harvest, and it does not fit the bracket.
• C) My uncle grow coffee on a small farm.'Grow' has no -s, so it does not agree with the singular subject 'my uncle' in the third person of the present simple.
• D) My uncle have grown coffee on a small farm.'Have grown' is the present perfect, which links a past action to the present; the sentence states a repeated habit instead.

Respuesta correcta: C) What do the students do every Monday?

• A) What the students do every Monday?A wh question needs the auxiliary 'do' before the subject, otherwise the sentence has no verb structure and cannot be a question.
• B) What does the students do every Monday?'Does' belongs to the third person singular, and 'the students' is plural, so the auxiliary here has to be 'do'.
• C) What do the students do every Monday?Correct! Wh questions invert the auxiliary and the subject exactly like yes and no questions: 'What do the students do?'
• D) What the students does every Monday?With 'does' the verb would lose its -s, but the real problem is the subject: 'the students' requires the plural auxiliary 'do'.

Respuesta correcta: D) The museum opens at nine, doesn't it?

• A) The museum open at nine, doesn't it?The statement itself is wrong: a third person singular subject requires 'opens'. A tag question cannot repair a faulty statement.
• B) The museum opens at nine, don't it?'Don't' cannot serve as the tag of a statement whose subject is singular third person; the auxiliary of the statement is 'opens', so the tag uses 'doesn't'.
• C) The museum opens at nine, isn't it?'Isn't' would be the tag of a statement built with 'is', such as 'The museum is old, isn't it?', but here the verb is 'opens'.
• D) The museum opens at nine, doesn't it?Correct! A tag question repeats the auxiliary of the statement with a negative form, and 'does' agrees with the singular subject 'the museum'.

Respuesta correcta: B) Carla always finishes her homework before dinner and then she watches a documentary.

• A) Carla always finish her homework before dinner and then she watches a documentary.The second verb 'watches' is correct but the first one is not; 'Carla' is singular third person, so the first verb needs the -s of 'finishes'.
• B) Carla always finishes her homework before dinner and then she watches a documentary.Correct! Both verbs share the subject 'Carla', so both take the -s of the third person singular: 'finishes' and 'watches'.
• C) Carla always finishes her homework before dinner and then she watch a documentary.The first verb 'finishes' is correct but the second one is not; after 'and' the two clauses share the same subject, so 'watches' keeps the -s.
• D) Carla always finishing her homework before dinner and then she watches a documentary.'Finishing' is an -ing form and cannot open the clause; a present simple statement needs the finite form 'finishes'.

Respuesta correcta: A) The bus to Quito leaves the terminal at six in the morning.

• A) The bus to Quito leaves the terminal at six in the morning.Correct! 'The bus' is a singular third person subject, so the present simple of the verb 'to leave' must be 'leaves'.
• B) The bus to Quito leaving the terminal at six in the morning.'Leaving' is an -ing form and needs a helping verb such as 'is'; as it stands the clause has no finite verb.
• C) The bus to Quito leave the terminal at six in the morning.'Leave' lacks the -s required after the singular subject 'the bus', so the sentence is not the present simple third person.
• D) The bus to Quito is leave the terminal at six in the morning.'Is leave' mixes the auxiliary 'is' with a bare infinitive; English does not use 'is' before the base form of another verb.

Respuesta correcta: B) Doctors at the clinic work at night during the emergency season.

• A) Doctors at the clinic works at night during the emergency season.'Works' takes the -s of the third person singular, but 'doctors' is plural, so the plural subject needs the base form of the verb.
• B) Doctors at the clinic work at night during the emergency season.Correct! A plural third person subject takes the base form of the verb with no ending, which is why 'doctors work' and not 'doctors works'.
• C) Doctors at the clinic working at night during the emergency season.'Working' is an -ing form and cannot be the verb of a present simple statement; it would need 'are working'.
• D) Doctors at the clinic is work at night during the emergency season.'Is work' is not a form in English; a verb like 'work' is either 'works' with 'he' or 'work' with 'they', never 'is work'.

Respuesta correcta: D) My cousin does not study medicine.

• A) My cousin not study medicine.'Not' cannot open the negative clause by itself; English builds the negation with the auxiliary 'do', 'does' or 'did'.
• B) My cousin doesn't studies medicine.'Doesn't' already carries the -s of the third person, so the main verb must drop it and stay as the base form 'study'.
• C) My cousin don't studying medicine.'Don't' belongs to I, you, we and they, and the -ing form cannot follow it; a negative present simple never uses 'don't' with 'my cousin'.
• D) My cousin does not study medicine.Correct! The full form 'does not' agrees with the singular subject 'my cousin' and is followed by the base form 'study'.

Respuesta correcta: C) The owner always greets the neighbours when the shop opens.

• A) The owner is always greet the neighbours when the shop opens.'Is greet' is not a form in English; 'greets' is the correct present simple verb for a singular third person subject.
• B) The owner always greet the neighbours when the shop opens.The second verb 'open' lacks the -s that the singular subject 'the shop' requires, and the first verb is a distractor error.
• C) The owner always greets the neighbours when the shop opens.Correct! Both verbs have 'the owner' as their subject, and that singular third person subject gives 'greets' and 'opens' with -s.
• D) The owner always greets the neighbour when the shop open.'The shop open' has the same agreement error: a singular subject needs 'opens', and the plural 'the neighbours' needs the -s of 'greets'.

Respuesta correcta: A) Water boils at one hundred degrees Celsius.

• A) Water boils at one hundred degrees Celsius.Correct! 'Water' is a singular third person subject, so the general truth is stated with 'boils', not with the base form 'boil'.
• B) Water is boil at one hundred degrees Celsius.'Is boil' is not a grammatical combination; after 'is' a progressive or a description follows, never a bare base form.
• C) Water boiling at one hundred degrees Celsius.'Boiling' is an -ing form and needs a helping verb; a scientific fact stated as a general truth uses the simple present.
• D) Water boil at one hundred degrees Celsius.'Boil' has no -s, so it does not agree with the singular subject 'water'; general truths still require subject and verb agreement.

Respuesta correcta: C) When

• A) What'What' asks for a thing or a definition, and the answer 'it opens at eight' gives a time rather than an object.
• B) Where'Where' asks for a place; the answer names a time, eight o'clock, so the question word has to be 'when'.
• C) WhenCorrect! 'When' asks about a time or a date, and the answer 'it opens at eight' supplies exactly that.
• D) Why'Why' asks for a reason and would need an answer such as 'because it serves the whole neighbourhood'.

Respuesta correcta: B) Ana writes short stories and her brother illustrates them.

• A) Ana writes short stories and her brother illustrate them.'Her brother' is the subject of the second clause, so the second verb must also take the -s: 'illustrates', not 'illustrate'.
• B) Ana writes short stories and her brother illustrates them.Correct! Each clause has its own singular third person subject, so both verbs carry the -s of the present simple.
• C) Ana write short stories and her brother illustrates them.'Ana' is the subject of the first clause, so the first verb must take the -s: 'writes', not 'write'.
• D) Ana writes short stories and her brother illustrating them.'Illustrating' is an -ing form and cannot be the verb of the second clause; the clause needs the finite form 'illustrates'.

Respuesta correcta: D) The neighbours bring food to the main square every August.

• A) The neighbours has bring food to the main square every August.'Has bring' mixes an auxiliary with a base form; 'has' is followed by the past participle 'brought' or by 'to bring', never by 'bring'.
• B) The neighbours brings food to the main square every August.'Brings' is the third person singular form, but 'the neighbours' is plural and therefore takes the base form of the verb.
• C) The neighbours bringing food to the main square every August.'Bringing' is an -ing form; a present simple statement about a yearly habit needs the finite form of the verb.
• D) The neighbours bring food to the main square every August.Correct! 'The neighbours' is a plural noun, so the present simple keeps the base form 'bring' without any ending.

Respuesta correcta: A) What does Daniel do?

• A) What does Daniel do?Correct! 'What does Daniel do?' is the standard way to ask about someone's job or occupation in English.
• B) Why does Daniel work?'Why' asks for a reason, so the answer would explain a cause such as 'because he likes working with his hands'.
• C) When does Daniel work?'When' asks about a time or a schedule, so the answer would be something like 'from Monday to Saturday'.
• D) Where does Daniel work?'Where' would need an answer naming a place, such as 'in a workshop near the market', not his occupation.

Respuesta correcta: B) Do the tourists visit the old town every year?

• A) Does the tourists visit the old town every year?'Does' is the third person singular auxiliary and cannot agree with the plural subject 'the tourists'.
• B) Do the tourists visit the old town every year?Correct! 'Do' is the auxiliary of a plural subject and it is followed by the base form 'visit', with the subject placed after it.
• C) Are the tourists visit the old town every year?'Are' opens a progressive or a description; the simple action 'visit' needs the auxiliary 'do' in a question.
• D) The tourists visit the old town every year?A statement is not a question; the subject and the verb have to be inverted around the auxiliary 'do'.

Respuesta correcta: D) Yes, he does.

• A) Yes, he repeat it.'He repeat' has no -s after a singular third person pronoun, so the auxiliary 'does' in the question is answered with a verb that breaks agreement.
• B) Yes, he repeats it every day.Repeating the whole clause answers the question in a long form; the short answer expected here is pronoun plus auxiliary.
• C) Yes, he is.'He is' would answer a question such as 'Is he your teacher?', but this question was built with 'does'.
• D) Yes, he does.Correct! The question uses the auxiliary 'does', so the short answer is 'he does', with the pronoun and the auxiliary in place.

Respuesta correcta: C) Every farmer watches the sky in May.

• A) Every farmer watch the sky in May.'Every farmer' is a singular subject because 'every' takes a singular noun, so the verb needs the -s form 'watches'.
• B) Every farmer watching the sky in May.'Watching' is an -ing form and cannot be the verb of the sentence; it would need 'is watching'.
• C) Every farmer watches the sky in May.Correct! 'Every' is followed by a singular noun and makes that noun singular, so the verb takes the -s of the third person singular.
• D) Every farmer is watch the sky in May.'Is watch' is not a valid form; after 'is' a progressive or an adjective follows, never a base form without 'to'.