单项选择题

You'd better go now, ______ you'll miss the next train.

A．if
B．or else
C．or not
D．unless
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单项选择题
No cat and no dog ______ to get into the public park.
A．are allowed
B．allows
C．is allowed
D．allow
单项选择题
Is there a dry cleaning service in this hotelI need to get my suit ______．
A．mending
B．mended
C．cleaning
D．cleaned
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