Our classroom must___ _ every afternoon.[ ]A. clean B. cleansC. cleaned

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Our classroom must___  _ every afternoon.[     ]
A. clean
B. cleans
C. cleaned
D. be cleaned

答案

举一反三

句型转换。
1. They make these watches in Shanghai. (改为被动语态)
    These watches       _____                  Shanghai.
2. This tree can be moved to another place.(改为一般疑问句)
           _____this tree ________to another place?
3. These rooms were decorated by a few hoys yesterday  morning.(用tomorrow改写句子)
    These rooms____  __ _                by a few boys______     .
4. These newspapers you have read should be throw way.(改为否定句)
    These newspapers you have read____                          away.
5. The robot was improved by a young man last month.(改为主动语态)
    A young man   _______      _____        _____     last month.

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用所给词的适当形式填空。1. The house     __    (surround) by police last night.
2. Was the snake   __    (live) or dead?
3. He never        __(depend) on anyone in those days.
4. They had great difficulty in __       (breathe) ,for the air was thin.
5.A little girl in white        __(draw) my attention that day.
6. You have had a life of joy,and ___      (please) and success.
7. The two girls look the same,l think they"re  __       ( twin)．

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—Excuse me, what"s this for?
—It"s a cleaner and it _       to pick up dirt.[     ]
A. uses
B. is used
C. is using
D. used

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Don"t put off today"s work till tomorrow. l mean, today"s work         _today.[     ]
A. may do
B. must do
C. may be done
D. must be done

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Waste paper shouldn"t        everywhere .It"s our duty to keep our city clean.[     ]
A. be thrown
B. throw
C. is thrown
D. are thrown

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