6 had done

7 had cleaned

8 had gone

9 had been

10 had been

1 had finished

2 had already started

3 had moved

4 had gone

5 had been

26 A

27 D

28 D

29 B

30 B

21 D

22 B

23 B

24 D

25 B

16 B

17 C

18 A

19 B

20 B

6 has lost

7 has written

8 has been writing

9 has found

10 has spent

Ex6

1 have bought

2 have you finished - have read

3 has eaten

4 haven't seen

5 have been driving

6 went

7 played

8 have you ever been

9 was - didn't like

10 has visited

Ex5

1 didn't learn

2 have had

3 have been waiting

4 haven't eaten - saw

5 have written

6 has studied

7 have been

8 has been

9 came

10 has learned - has been learning