1) They are busy now, they (are discussing) an important problem.
2) They (have been discussing) it since two o’clock.
3) Both grown-ups and children (are) fond of playing computer games.
4) My friend (has) a good ear for music.
5) He (has played или has been playing) the piano since five years old.
6) Look! The boys (have broken) the window and now they are running away.
7) Let’s go, the train (has already arrived).
8) When (did you visit) our city for the first time?
9) He (had collected) thousands of stamps with pictures of famous people before he gave up philately.
10) You shouldn’t speak loudly when you (are fishing).
I (was listening) to the radio while Mary (was cooking) dinner.
(Did you buy) this book yesterday?
Last Friday Jill (went) home early because she (wanted) to see a film.
When (does your brother usually get) home in the evening?
Jane always (brings) us a nice present.
What (are those people doing) in the middle of the road?
(Have you read) this book?
While Fred (was sleeping), Judy (was watching) TV.
When I (was) young, I (thought) Mary (was) nice — but now I (think) she’s fantastic.
Jill (was walking) home when she (saw) her husband’s car outside the cinema.
Look there! Sue and Tim (are running) to school.
Jack’s father (does not work) in London — he (does not speak) English.
Joe (bought) a car yesterday.
Their father often (goes) to rock concerts.
While you (were sleeping), mother (arrived).
ответ:1 c,d 2 a,e 3 b,f
Объяснение: