chuyển sang câu bị động:
1. Have you sent the christmas cards to your family?
have the christmas cards been sent to your family?
2. The committee appointed Alice secretary for the meeting.
Alice secretary was appointed by the committee for the meeting
3. He hides the broken cup in the drawer.
the broken cup is hided in the drawer
4. They keep this room tidy all the time.
this room is kept tidy all the time
5. They all voted the party a great success.
the party was voted a great success by them
1. Have the christmas cards been sent to your family?
2. Alice was appointed secretary for the meeting by the committee.
3. The broken cup is hidden in the drawer by him.
4. This room is kept tidy by them all the time.
5. The party was voted a great success by them.
