I.

1. Milk is used for making butter and cheese.

2.  The river is covered by weeds.

3. The newspapers are delivered every morning by John.

4. Is English taught here (by them)?

5. Where is English spoken?

II

1. A new ring-road is being built around the city.

2. A lot of question is being asked to me by him.

3. Their house is painted.

4.  The office is being redecorated.

5. A letter is written by him.

III.

1. The day of the meeting has been changed.

2. That cake has been made by my mother.

3.  A dinner has been prepared before we come.

4. The victims have been provided with food and clothing.

6. Human life has completely been changed with Science and technology.

Cấu trúc câu bị động:

Thì hiện tại đơn: S+ am/is/are + past participle 

Thì hiện tại tiếp diễn:  S+ b + being+ past participle 

Thì hiện tại hoàn thành: S+ have/has + been+ past participle 

I. Thì hiện tại đơn

1. => Milk is used for making butter and cheese.

2.  => The river is covered by weeds.

3. The newspapers are delivered every morning by John.

4. Is English taught here?

5. Where is English spoken?

II. Thì hiện tại tiếp diễn

1. A new ring road is being built round the city.

2. A lot of question is being asked to me by him.

3. Their house is painted.

4.  The office is being redecorated.

5. A letter is written by him.

III. Thì hiện tại hoàn thành

1. The day of the meeting has been changed.

2. That cake has been made by my mother.

3.  A dinner has been prepared before we come.

4. The victims have been provided with food and clothing.

6. Human life has completely been changed with Science and technology.