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