1. They were pulling down the old theatre.
→ the old theatre was being pulled down → bị động qktd
2. Someone will serve refreshments.
→ refreshments will be served → bị động tlđ

3. You should open the wine about three hours before you use it.

→ the wine should be opened about three hours before you use it → bị động modal verbs
4. Somebody has cleaned my shoes and brushed my suit.
→ my shoes have been cleaned and my suit was brushed → bị động htht + qkđ
5. Students are doing a lot of the work. 
→ a lot of the work is being done by students → bị động httd
6. People speak English and French in Canada.
→ english and french are spoken in canada → bị động htđ
7. They are going to build a bridge near my house.
→ a bridge is being built near my house → bị động httd
8. I have to do a lot of homework before I go to bed.
→ a lot of homework have to be done before I go to bed → bị động mv
9. Nobody broke my vase yesterday. 
→ my vase wasn't broken yesterday → bị động qkđ ở dạng phủ định
10. Minh didn’t do his homework last week.
→ minh's homework weren't done last week → bị động qkđ phủ định

xin hay nhatt

`1` The old theatre was being pulled down 

`->` Câu bị động thì QKTD : S + was/were + being + Vpp + (by O)

`2` Refreshments will be served

`->` Câu bị động thì TLĐ : S + will + be + Vpp + (by O)

`3` The wine should be opened about three hours before you use it

`->` Câu bị động với ''should'' : S + should + be + Vpp + (by O)

`4` My shoes have been cleaned and my suilt has been brushed 

`->` Câu bị động thì HTHT : S + have/has + been + Vpp + (by O)

`5` A lot of the work are being done (by students)

`->` Câu bị động thì HTTD : S + am/is/are + being + Vpp + (by O)

`6` English and French are spoken in Canada

`->` Câu bị động thì HTĐ : S + am/is/are + Vpp + (by O)

`7` A bridge is going to be built near my house 

`->` Câu bị động thì TLG : S + am/is/are + going to + be + Vpp + (by O)

`8` A lot of homework have to be done before I go to bed

`->` Cấu trúc : S + have/has to + be + Vpp + (by O)

`9` My vase wasn't broken yesterday

`->` Câu bị động thì QKĐ : S + was/were + Vpp + (by O)

`10` Minh's homework weren't done last week

`->` Câu bị động thì QKĐ : S + was/were + Vpp + (by O)