单项选择题

I hope all the precautions against air pollution,______ suggested by the local government, will be seriously considered here.

A．while
B．since
C．after
D．as
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单项选择题
We had to______ a lot of noise when the children were at home.
A．go in for
B．hold on to
C．put up with
D．keep pace with
单项选择题
______she realized it was too late to go home.
A．No sooner it grew dark than
B．Hardly did it grow dark that
C．Scarcely had it grown dark than
D．It was not until dark that
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