5.    They built the bridge two years ago.(改为被动语态)

The bridge__________  _________ two years ago by them.

4.    I think the most annoying invention is the alarm clock.(对画线部分提问）

______  ___________  _________  _______ is the most annoying invention?

3.   Sweaters are used for keeping warm.(对画线部分提问）

________  ________ sweaters _________  _________ ？

2.   The telephone was invented by Bell.(对画线部分提问）

_______  ________  the telephone ______________？

1.   Personal computers were invented in 1976.(对画 线部分提问）

________  ________ personal computers___________ ？

5.    We believe we can___________ a good way to solve the problem of pollution in the future.

A. catch up with          B. come up with

C. put off              D. set off

4.    Be careful, Alice. Dont fall_____________ the river.

A. down   B. asleep    C. into      D. off

3.    ―How many new desks and chairs are there in your school?

—There are over3 ，000. Each of us has one.
A. less than       B. most

C. more than       D. as many as

2.    My watch__________   by a thief last week.

A. stole           B. was stolen

C. steal           D. will steal

1.    I prefer to listen to the" song ______________  Heart String.

A. called         B. call

C. is called       D. is named