单项选择题

（）he driven more carefully，the accident would not have happened the other day.

A.Be
B.Had
C.Has
D.Would have

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单项选择题

Upon graduation from school，how well will you（）the job that lies ahead？

A.prepare
B.prepare for
C.be prepared for
D.be preparing

单项选择题

There was a big fire yesterday.But everyone（）escape from the burning building.

A.could
B.were able to
C.abled to
D.was able to

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