单项选择题

It's time ______ about the traffic problem downtown.

A．something was done
B．anything will be done
C．everything is done
D．nothing to be done
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单项选择题
You might have ______ the accident if you had had your headlights on.
A．missed
B．avoided
C．escaped
D．dismissed
单项选择题
We didn't know his telephone number; otherwise we ______ him.
A．had telephone
B．would telephone
C．must have telephoned
D．would have telephoned
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