单项选择题

The room is in a terrible mess; it （） cleaned.

A. can’t have been
B. mustn’t have been
C. shouldn’t have been
D. wouldn’t have been

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单项选择题

I have kept that portrait （） I can see it every day, as it always reminds me of my university days in London.

A. which
B. where
C. whether
D. when

单项选择题

The manager lost his （）.just because his secretary was ten minutes late.

A. mood
B. temper
C. mind
D. passion

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