单项选择题

Since the road is wet this morning, ______ last night.

A．it must rain
B．it must be raining
C．it must have rained
D．it must have been rain
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单项选择题
21（）

A．provides
B．gets
C．prepares
D．does
单项选择题
Will it rain tomorrow I hope ______.
A．no
B．yes
C．not
D．will
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