Đặt 3 câu( +,-,? ) từ chủ động chuyển sang bị động

Đáp án+Giải thích các bước giải:

`(+)` She met her friends at school.

`->` Her friends were met at school.

`(-)` She didn't meet her friends at school.

`->` Her friends weren't met at school.

`(?)` Did she meet her friends at school ?

`->` Were her friends met at school ?

`@` Forms :

`(+) S + V-ed \/ V-bqt + O.`

`-> S + was \/ were + P II + O.`

`(-) S + didn't + Vo + O.`

`-> S + was \/ were + not + P II + (by) + O.`

`(?) Did + S + Vo + O ?`

`-> Was \/ Were + S + P II + (by) + O ?`

Đáp án + Giải thích các bước giải:

(+) I buy somebooks 

⇒ Somebooks are bought by me 

(-) She doesn't make a dress 

⇒ A dress isn't made by her 

( ? ) Do you cook meal ?

⇒ Is meal cooked by you ?

Cấu trúc : HTD

(+) S + Vs,es + O

⇒ S + is / are / am + PP2 + by + O

( - ) S + don't / doesn't + V + O

⇒ S + isn't / aren't / am not + PP2 + by + O

( ? ) Do / Does + S + V + O

⇒ Is / Are + S + PP2 + by + O