These books _____ out of the reading room. You have to read them here.

题型：同步题难度：来源：

These books _____ out of the reading room.  You have to read them here.             [     ]
A. must be taken
B. can"t take
C. can take
D. mustn"t be taken

答案

举一反三

Your mother looks a bit disappointed. You           have told her the truth.     [     ]
A. do
B. must
C. can
D. want

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—The room is so dirty. _____ we clean it?   "
—Of course.    [     ]
A. Let"s
B. Would
C. Do
D. Shall

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You mother looks a bit disappointed. You               have told her the truth.         [     ]
A．should
B．must
C．can
D．will

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A lot of trees _______ in our town.              [     ]
A. should be planted
B. planted
C. are planting

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To make our city more beautiful, rubbish _      _ into the river.          [     ]
A. needn"t be thrown
B. mustn"t be thrown
C. can"t throw

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