1) I have not liked the school uniform since I was 12.
2) I have already got a lot of friends at school.
3) I wish our music lessons to have been on Mondays.
4) He has known this subject since he was 6.
5) If I could sing, I would have become a singer.
6) She has been in London two times.
7) Have you met my sister this week?
8) We have worked hard at this lesson.
9) Your brother has asked me to help him.
10) She has asked us what we wanted to do in the evening.
11) I have suggested going to the theater.
12) My friend has said that he wants to have his own style.
13) We have never snowboarded, have we?
14) I would like the weather to have been warmer.
15) The exam in Russian has been as important as mathematics.
Здесь не во всех предложениях уместна форма present perfect.
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