Áu áu .... .

1. Mary types letters in the office.

→ Letters are typed in the office by Mary.

2. His father will help you tomorrow.

→ You’ll be helped by his father tomorrow.

3. Science and technology have completely changed human life.

→ The human life has completely been changed with science and technology.

4. Peter broke this bottle.

→ This bottle was broken by Peter.

5. They are learning English in the room.

→ English is being learnt in the room.

6. Nothing can change my mind.

→ My mind can’t be changed.

7. No one had told me about it.

→ I hadn’t been told about it.

8. I don’t know her telephone number

→ Her telephone number isn’t known.

9. My students will bring the children home.

→ The children will be brought home by my students.

10. They sent me a present last week.

→ I was sent a present last week.

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