1. Chinese people invented the abacus in the sixth century. (改为被动语态)
    The abacus                                      in the sixth century by Chinese people.
2. I don't like the movie. The movie is very boring. (合并为含有定语从句的复合句)
    I don't like the movie                                      very boring.
3. I used to have long curly hair. (改为一般疑问句)
    __________ you __________ to have long curly hair?
4. Few people understood what he said at the meeting. (改为反义疑问句)
    Few people understood what he said at the meeting, __________ __________?
5. Mr. King is too busy to go to the concert. (改为同义句)
    Mr. King is ___________ busy ___________ he can't go to the concert.

1. Her mother often made her clean her bedroom. (同义句)
    She               often                                             her bedroom by her mother.
2. We used to keep the classroom clean. (一般疑问句) 
                  you                to keep the classroom clean?
3. I suppose Class Three won't win the basket match (连成一句)
    I                               Class Three                               the basket match
4. Mary's passed the English test,                            ? (反义疑问句)
5. He didn't catch the early bus, he felt unhappy. (同义句)
                  the early bus made               unhappy.

A. be allowed
B. allow
C. be allow
D. to allow

A. should not be
B. should be not
C. not should be
D. shouldn't

A. that; regard
B. that; be regarded
C. what; regard
D. it; be regarded

1. This machine ____________(use) for washing clothes. It is called "washing machine".
2. Now most work _____________(can do) by robots.
3. More and more trees ____________(plant) on the mountains soon.
4. There is another way of ____________ (work) out the problem.
5. Don't make them_____________(stand) long outside.
6. "Show me your _____________(driver) license." "Here you are."
7. There have been a few _____________(disagree) between the two parties.
8. I feel ________ (sleep); I'm going to lie down.
9. She tried to stop smoking, and she ________ (success).
10. The matter is of great ________ (important).

A. was taken care
B. took care of
C. is taken care of
D. was taken care of

A. work
B. working
C. to work
D. worked

A. comparing with
B. compared by
C. being compared with
D. compared with

A. gave
B. was given
C. gives
D. has been given