“It’s twelve o’clock, I think I must be off now.” “Oh, really？ I ______ it at a

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“It’s twelve o’clock, I think I must be off now.” “Oh, really？ I ______ it at all.”

A．don’t realize	B．haven’t realized
C．didn’t realize	D．hadn’t realized

答案

解析

略

举一反三

“What place is it？” “Haven’t you found out we _____ back where we ______？”

A．were, had been	B．have been, are
C．are, were	D．are, had been

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He is very busy. I don’t know if he _____ or not tomorrow.

A．come	B．comes
C．will come	D．is coming

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“When _____ he come？” “I don’t know, but when he _____, I’ll tell you.”

A．does, comes	B．will, will come
C．does, will come	D．will, comes

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“When he _____ is not known yet.” “But when he ____, he will be warmly welcomed.”

A．comes, comes	B．will come, will come
C．comes, will come	D．will come, comes

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The bridge, which _____ 1688, needs repairing.

A．is dated from	B．was dated from
C．dates from	D．dated from

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