$@Mayumi Dojima$

`11.` We were given more information by her.

`12.` All the workers of the plan was being instruced by the chief engineer.

`13.` Tea can't be made with cold water.

`14.` Some of my books have been taken away.

`15.` The meeting will be held before May Day.

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`+` Cấu trúc câu bị động:
`-` Thì TLĐ: S + will + be + Ved/V3 + (BY  O)
`-` Thì QKĐ: S + was/were + Ved/V3 + (BY  O)
`-` Thì HTHT: S + have/has + been + Ved/V3 + (BY  O)
`-` Động từ khuyết thiếu: S + ĐTKT + be + Ved/V3 + (BY  O)

`11` We were given more information by her.

`-` cấu trúc câu bị động thì QKĐ : S+was/were+(not) +V3/ed+(by+O)...........

`-` ở đây đừng bỏ by her đi vì nó hơi hơi lệch nghĩa

`-` we là số nhiều nên dùng were 

`12` All the workers of the plan were being instruced by the chief engineer.

`-` cấu trúc câu bị động thì QKTD : S+was/were + (not) +being + V3/ed+(by+O)......

`-`  All the workers là số nhiều nên dùng were

`13` Tea can't be made with cold water.

`-` cấu trúc bị động với model verb : S+can/may/... +(not ) +be+ V3/ed+ (by+O).........

`14` Some of my books have been taken away.

`-` cấu trúc bị động thì HTHT  : S+have/has+(not)+been+V3/ed+(by+O).....

`-` some of my books là số nhiều nên dùng have

 `15` The meeting will be held before May Day

`-` cấu trúc bị động thì TLĐ : S+will+(not)+be+V3/ed+(by+O0......