单项选择题

Not until three years ago ______ to work overseas.

A．he began
B．he begins
C．began he
D．did he begin
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单项选择题
We feel it is high time that the government ______ something to curb inflation.
A．did
B．does
C．do
D．would do
单项选择题
When it comes to the end of the meeting, don t forget to make a conclusion, ______
A．could you
B．should you
C．do you
D．will you
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