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change the following sentences into the passive

1, you mustn't touch this button while the experiment is in progress.

2, someone will blow a whistle if there is an emergency .

3, did people make jeans two hundred years ago?

4, you should pay your bill before you leave the hotel.

Linh Diệu
24 tháng 6 2017 lúc 7:51

change the following sentences into the passive

1, you mustn't touch this button while the experiment is in progress.

this button mustn't be touched while the experiment is in progress.

2, someone will blow a whistle if there is an emergency .

a whistle will be blown if there is an emergency .

3, did people make jeans two hundred years ago?

was jeans made two hundred years ago?

4, you should pay your bill before you leave the hotel.

your bill should be paid before you leave the hotel.

Nguyen Van Thanh
25 tháng 6 2017 lúc 13:23

1) This button mustn't be touched while the experiment is in progress.

2) A whistle will be blown if there is an emergency.

3) Was jeans made two hundred years ago ?

4) Your bill should be paid before you leave the hotel.


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