5. have learnt

6. has played

7. hasn't rained

8. haven't seen

9. has worked

10. has seen

VII.

1. has won

2. haven't studied

3. have taken

4. has visited

5. have read

6. haven't seen

VIII.

1. have read

2. read

3. had

4. have had

5. have had

6. have lived

7. went

8. stayed

9. haven't seen - hasn't visited

10. has been

11. has worked

12. moved - have been

13. wore

14. has been

IX.

1. is looking

2. started

3. has learnt

4. have just made

5. has she fed

6. has your dog ever bitten - bit

7. have you ever been

8. have you known - have known

9. haven't seen - were

10. has she finished

X.

1. most recent

2. shortest

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