单项选择题

Mary said that she ______ the cold for several days and still couldn't get fid of it.

A．had had
B．had caught
C．has caught
D．caught
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单项选择题
I have done much of the work. Could you please finish ______ in two days
A．the rest
B．the other
C．another
D．the others
单项选择题
--The window is dirty. --I know. It ______ for weeks.
A．hasn't cleaned
B．didn't clean
C．wasn't cleaned
D．hasn't been cleaned
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