问题 句型转换

把下列各句改为被动语态。

1. We clean our classroom every day.

     Our classroom _____  by us every day.

2. They produce silk in Suzhou.

     Silk _____  in Suzhou.

3. They speak English in class.

    English _____  in class.

4. He teaches us ten words every class.

    Ten words _____  to us _____  every class.

5. We use keys for opening the door.

     Keys _____  opening the door.

答案

l. is cleaned  

2. is produced  

3. is spoken by them  

4. are taught, by him  

5. are used for

单项选择题
判断题