题目内容

They ____ so tired if they ____ for a whole day.

A. wouldn't be feeling; weren't walking
B. wouldn't be feeling; hadn't been walking

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________ terms, we would go bankrupt.

A. If we accept
B. If we should accept
C. If we had accepted
D. If we are to accept

There was an accident in this street this morning and______ there has been asevere congestion of traffic.

A. until that
B. since that
C. for which
D. after that

Kennedy_____ in the library every night for the last three months.

A. studied
B. studies
C. has been studying
D. is studying

ln fact , some scientists worry at 100 years ______ theremay be no whales left.

A. since now
B. from now
C. before now
D. after now

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