单项选择题

（） that you were out, I wouldn’t have bothered to come all the way at that time of night.

A. If I should know
B. If I know
C. Had I known
D. Were I to know

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The winter vacation （） over, he got down to his work again.

A. was
B. were
C. had been
D. being
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After a few rounds of talks, both sides regarded the territory dispute （）.

A. being settled
B. to be settled
C. had settled
D. as settled
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