`14`. Some of my books have just been taken away by a boy.

`15`. A new style of jeans has just been introduced in the USA.

`16`. How long has their work been done ?

`17`. He has just been told about the meeting.

`18`. That course hasn't been taught by Mr.Snow since 1985.

`19`. New evidence has been discovered by the city attorney.

`20`. This room hasn't been used for ages.

Câu bị động thì hiện tại hoàn thành: S + have/has been + PII/Ved + O(by sb).

`1`. A big cake is being made for the party by her.

`2`. The reports are being written by us.

`3`. Several new schools are not being built in our town.

`4`. He is being talked about everywhere.

Câu bị động thì hiện tại tiếp diễn: S + is/am/are + being + PII/Ved + O(by sb).

14. Some of my books have just been taken a way.

15. A new style of jeans has just been introduced in the USA.

16. How long has their work been done ?

17. He has just been told about the meeting.

18. That course hasn't been taught by Mr.Snow since 1985.

19. New evidence has been discovered by the city attorney.

20. This room hasn't been used for ages.

→ câu bị động thì HTHT: S + have/has (not) + been + V3/ed + (by+O)

4).

1. A big cake is being made for the party by her.

2. The reports are being written by us.

3. Several new schools are not being built in our town.

4. He is being talked about everywhere.

→ câu bị động thì HTTD: S + is/am/are (not) + being + V3/ed + (by+O)