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---The book is borrowed from the library. You ____ your children touch it with their dirty hands.　---Sorry.　   
#88042
A
should have let　
B
needn’t have let　
C
mustn’t have let
D
ought not to have let
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You can’t imagine that a well-behaved gentleman _____ be so rude to a lady.
#90510
A
might
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#86844
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#86763
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were; must finish
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#89350
A
mustn’t have arrived
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shouldn’t have arrived
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D
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