We tried our best to help them________the help they had done to us.[ ]A．on t

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We tried our best to help them________the help they had done to us.[     ]
A．on the basis of
B．in memory of
C．on condition that
D．in return for

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举一反三

The secretary took notes carefully, ________missing some important points.[      ]
A. for fear of
B. in case of
C. in spite of
D. instead of

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Sports and games should not be treated only________amusements.[      ]
A. as
B. for
C. of
D. with

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She had almost failed the exam, but her sister, ________had done very well.[ ]

A. contrast with
B. contrasting with
C. by contrast
D. by difference

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Many young people left their hometown for big cities ________ better jobs.[     ]
A. in favour of
B. in search of
C. in charge of
D. in honour of

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Fred entered without knocking and, out of breath, sank________ a chair.[     ]
A. on
B. off
C. into
D. to

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