单项选择题

Everyone is busy ______ the examination in the classroom.

A. with
B. for
C. on
D. under
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单项选择题
The girl immediately shut the window to ______ the rain.
A. keep out
B. keep down
C. keep up
D. keep back
单项选择题
I suppose you couldn’t let me borrow your car this evening, ______
A. couldn’t I B. don’t I
C. could you
D. will you
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