Ответ:

1. have gone

2. have bought

3. have visited

4. have never seen

5. haven't gone

6. it has been raining

7. have you ever watched

8. has given

9. haven't forgotten

10. have found

1. has been to / bought

2. got / hasn't worn

3. did Richard go / haven't heard

4. opened / have sent

5. have seen / got

1. did you get it

2. bought

3. haven't been

4. was opened

5. have you bought

6. was

7. haven't had