Present Perfect Intro

Respuesta correcta: A) Have / Has

• A) Have / HasCorrect! Present Perfect uses have or has as an auxiliary.
• B) Do / DoesIncorrect. This is for Present Simple.
• C) Was / WereIncorrect. This is for Past Continuous or Past of be.
• D) WillIncorrect. This is for future.

Respuesta correcta: A) Past Participle (e.g., eaten)

• A) Past Participle (e.g., eaten)Correct. The Present Perfect is built with 'have' or 'has' followed by the past participle, the third column of the verb table.
• B) Base form (e.g., eat)The base form follows 'do', 'does' or a modal such as 'can', not the auxiliary 'have'.
• C) Past form (e.g., ate)The past form is used on its own in the Past Simple, as in 'I ate', not after 'have'.
• D) Continuous form (e.g., eating)The continuous form needs 'be' plus 'ing', as in 'I am eating', which is the Present Perfect Continuous.

Respuesta correcta: A) have seen

• A) have seenCorrect. The Present Perfect is 'have' plus the past participle 'seen'.
• B) have saw'Saw' is the past form used in the Past Simple; the participle of 'see' is 'seen'.
• C) has seen'Has' goes with a third person singular subject such as 'she', but the subject here is 'I'.
• D) am seenThe Present Perfect needs the auxiliary 'have' or 'has'; 'am' only appears with continuous forms.

Respuesta correcta: C) has traveled

• A) have traveledIncorrect. "Sister" (she) needs "has".
• B) has travelIncorrect. Needs the participle form.
• C) has traveledCorrect! "Has" for third person singular and the participle "traveled".
• D) have travelIncorrect auxiliary and verb form.

Respuesta correcta: D) have been

• A) wereIncorrect. This would be a specific past event.
• B) has beenIncorrect auxiliary for "they".
• C) have beIncorrect verb form.
• D) have beenCorrect! Used to talk about visiting a place at some point in life.

Respuesta correcta: D) Both the guitar and the piano.

• A) Only the guitar.Incorrect. She also tried the piano.
• B) Only the piano.Incorrect. She plays the guitar.
• C) None of them.Incorrect. She mentions two.
• D) Both the guitar and the piano.Correct! She mentions playing/trying both.

Respuesta correcta: A) I haven't seen that movie.

• A) I haven't seen that movie.Correct! Negative auxiliary + correct participle.
• B) I haven't saw that movie.Incorrect participle.
• C) I didn't seen that movie.Incorrect auxiliary for participle.
• D) I not have seen that movie.Incorrect word order.

Respuesta correcta: D) I have visited Cali several times.

• A) I went to Cali last year.Incorrect. Time is specified (last year).
• B) I saw my friend two hours ago.Incorrect. Time is specified (two hours ago).
• C) I am visiting Cali now.Incorrect. This is happening now.
• D) I have visited Cali several times.Correct! The specific times are not mentioned, only the fact of the experience.

Respuesta correcta: B) He is an active person with diverse interests and international experiences.

• A) He is a very lazy person.Incorrect. His achievements show activity.
• B) He is an active person with diverse interests and international experiences.Correct! Sport, language, and travel are diverse and active.
• C) He only cares about sports.Incorrect. He also learned a language and traveled.
• D) He has never left his city.Incorrect. He has traveled to three continents.

Respuesta correcta: D) Yes, they have experience in collaborative tasks and leadership roles.

• A) No, they only worked by themselves.Incorrect. They mention teams.
• B) Yes, but they only worked on one project.Incorrect. They mention "many projects".
• C) No, because school teams are not real experience.Incorrect. In a school context, it is valid experience.
• D) Yes, they have experience in collaborative tasks and leadership roles.Correct! "Worked in many school teams" and "been the leader" support this.