单项选择题

Hardly ______ when they ran toward it.

A．had the plane landed
B．did the plane land
C．the plane had landed
D．the plane landed
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单项选择题
Our boss told me my plan was still ______ discussion.
A．in
B．under
C．of
D．with
单项选择题
Don't forget to post the letter for me, ______
A．do you
B．will you
C．are you
D．can you
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