We shouldn"t their mistakes. [ ]A. to laughB. laugh atC. laughD. to

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We shouldn"t their mistakes. [ ]
A. to laugh
B. laugh at
C. laugh
D. to laugh at

答案

举一反三

You should really          smoking. It"s a terrible habit.   [     ]
A. grow up
B. pick up
C. give up
D. set up

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It was a difficult time, but we never          hope.   [     ]
A. put up
B. gave up
C. picked up
D. used up

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—Steven, could you help me_____when the  plane will take off on the Internet?
—I"m sorry, my computer doesn"t work.    [     ]
A get on
B. find out
C. look for
D. look after

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Mary, _____ the TV. Your father is writing a report.[ ]
A. turn over
B. turn on
C. turn down
D. turn up

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Why not help when you were in trouble?[ ]
A.you ask for
B.ask for
C. asking for
D.to ask for

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