`1.` This comedy was written by Shakespeare in 1800.

`2.` Some books were thrown away (by us) last week.

`3.` Our test papers are made by our teachers.

`4.` All the houses will be electrified (by them) in this area.

`5.` Great effort was made to solve the problem (by they).

`6.` This room will be used for the meeting next week.

`--------`

`-` Câu `1, 2, 5` : Bị động - Quá khứ đơn

`(+)` S + was/were + PII (by...)

`@` I, she, he, it và N số ít - was `|` `@` You, we, they và N số nhiều - were

`-` Câu `3` : Bị động - Hiện tại đơn

`(+)` S + is/ am/ are + PII (by......)

`@` She, he, it và N số ít - is `|` `@` I - am `|` `@` You, we, they và N số nhiều - are

`-` Câu `4, 6`: Bị động - Tương lai đơn

`(+)` S + will be + PII (by......)

1-This comedy was written by Shakespeare in 1800 (bị động của QKĐ)

2-Some books were thrown away last week by us.

3-Our test papers are made by our teachers. (bị động của HTĐ)

4-All the house will be electrified in this area. (bị động của TLĐ)

5-The problem was made great effort to solve.

6-This room will be used for the meeting next week.

CT:

Thì HTĐ O+ be + V(ed/pt2) + by + S

Thì QKĐ:O + was/were + V(ed/pt2) + by + S

Thì TLĐ: O + will + be + v(ed/pt2) + by + S