Ответ:

1 no, they aren't

2 no, he isn't

3 yes, it is

4 yes, they are

5 no, she isn't

6goes

7 leaves

8is reading

9boils

10are flying

11take

C 12 started, 13gives, 15 knew, 16have been, 17haven't finished

D 18 have you ever been, 19has gone, 20 have only been

E 21 bought 22since 23visits 24rising 25yet 26have just cleaned 27have seen 28 hasn't called 29 ago 30costs