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 --- I saw the Smiths at West Beijing Station this afternoon.--- You __________. They are still on holiday in Hawaii.
#62771
A
mustn't have
B
shouldn't
C
couldn't have
D
needn't
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—Where is Sally?—I’m not sure. She      in the library.
#77047
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might
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must
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#74870
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If you want to book tickets for the 2012 Olympic Games, just call 00952012．It ______ be simpler．
#63516
A
mustn't
B
shan't
C
needn't
D
couldn't