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![](https://rs.olm.vn/images/avt/0.png?1311)
Chuyển các câu sau sang câu bị động:
1. People must not leave bicycle in the hall.
BICYCLE MUST NOT BE LEFT IN THE HALL.
2. Members can keep books for three weeks.
BOOKS CAN BE KEPT BY MEMBERS FOR THREE WEEKS.
3. People should send their complaints to the main office.
PEOPLE'S COMPLAINS SHOULD BE SENT TO THE MAIN OFFICE.
4. You must turn off all the switches before leaving the room.
ALL THE SWITCHES MUST BE TURNED OFF BEFORE LEAVING THE ROOM.
5. You must make an appointment in advance.
AN APPOINMENT MUST BE MADE IN ADVANCE
![](https://rs.olm.vn/images/avt/0.png?1311)
1. The wine should be opened about three hours before you use it.
2. Bicycles mustn't be left in the hall.
3. The car might be stolen.
4. The room must be kept tidy by you.
5. The problem can't be solved by them.
1. You should open the wine about three hours before you use it.
=> The wine should be opened about three hours before you use it
2. You must not leave bicycles in the hall.
=> Bicycles mustn't be left in the hall
3. Someone might steal the car.
=> The car might be stolen.
4. You must keep the room tidy.
=> The room must be kept tidy
5. They can't solve the problem.
=> The problem can't be solved
![](https://rs.olm.vn/images/avt/0.png?1311)
The world’s population isn’t growing in all countries, _____isn't it______?
Life must be difficult in the slums, __mustn't it_________?
The homeless can’t afford to pay rent, ____can they_______?
It is not safe for tourist to visit the slums, _____is it______?
Everybody wants to save the world, _____don't they______?
Phần dưới trùng ắ
![](https://rs.olm.vn/images/avt/0.png?1311)
1 watching
2 doesn't see
3 study
4 isn't skipping
5 is swimming
6 read
7 will call
8 was bought
A
A