单项选择题

To drive well and ______ within the speed limits necessary in today’s traffic.

A. staying… are


B. to stay… are
C. to stay… is


D. staying… are
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单项选择题
Some women ______a good salary in a job instead of staying home，but they decided not to work for the sake of the family．
A．must make
B．would make
C．should have made
D．could have made
单项选择题
I would have gone to visit him in the hospital had it been at all possible, but I ______ fully occupied the whole of last week.
A. were
B. was

C. have been
D. having been
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