Present Simple or Past simple passive? Choose the correct option and fill in the gaps.

- Bị động của hiện tại đơn: S + am/is/ are + Vpp (+ by + O )

- Bị động của quá khứ đơn: S + was/were + Vpp (+ by + O )

1. was written

2. were taken

3. were typed

4. is collected

5. am often called

6. was sent

7. was ... placed

8. aren't washed - are put

9. are always done

10. was found

11. were moved

12. was asked

13. was .. borrowed

14. is spoken

15. are designed

16. is never handed