单项选择题

It is essential that these application forms ______ back as early as possible.

A．must be sent
B．will be sent
C．are sent
D．be sent
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单项选择题
Beer is the most popular drink among male drinkers, ______ overall consumption is significantly higher than that of women.
A．whose
B．which
C．that
D．what
单项选择题
I don't mind ______ the decision as long as it is not too late.
A．you to delay making
B．your delaying making
C．your delaying to make
D．you delay to make
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