Answer: C) Has/tried
Explanation for this question is being written.
Answer: A) Have done.
Answer: C) Has performed.
Answer: D) Have, done.
Answer: C) Talking about books they have read in their life.
Answer: D) Has already written.
Answer: B) Haven't seen George for 2 weeks.
Answer: B) B
Answer: C) Present Perfect.
Answer: D) We have reviewed the vendor proposals and identified two viable options.
Answer: D) Has given.
Answer: B) Have estimated / is.
Answer: A) Has
Answer: D) Has
Answer: B) Incorrect; it contains an error in the present perfect.
Answer: B) Has/have
Answer: D) Have changed.
Answer: A) Have you known, met.
Answer: C) Felt
Answer: B) Elles viennent d'aller.
Answer: D) Has lost.
Answer: C) Have lived.
Answer: B) Have
Answer: C) They have studied English.
Answer: B) I still live in this block of flats.
Answer: A) Have
Answer: C) I have eaten.
Answer: A) Have, spent.
Answer: D) HAVE-HAS + PAST PARTCIPLE.
Answer: A) I have finished my homework.
Answer: A) She has finished her homework.
Answer: D) Seen
Answer: D) Has written.
Answer: B) Have struck.
Answer: B) Have lived.
Answer: D) Has won.
Answer: B) Present Perfect.
Answer: C) Nicolas has found a new friend.
Answer: B) Have had.
Answer: C) Has been.
Answer: A) Has been.
Answer: B) Has had.
Answer: B) Have stolen.
Answer: A) Has come.
Answer: B) To talk about something started in the past but continue in the present.
Answer: A) Have just eaten.
Answer: A) Has reviewed.
Answer: A) Pr. Perfect.
Answer: C) Has learned.
Answer: C) We have been invited.
Answer: C) Have painted.
Answer: B) Has bought.
Answer: C) Has run.
Answer: A) Have visited.
Answer: C) I have studied at Estelar for 2 years.
Answer: B) Has just introduced.
Answer: D) Have lived.
Answer: D) Have seen.