单项选择题

Cats sleep________day and hunt________night.

A．in, in
B．at, at
C．during, during
D．by, by
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单项选择题
According to the doctors, if there were no________, they would probably cure the disease.
A．complexities
B．completions
C．compliances
D．complications
单项选择题
_______is often the case, the girl forgot to bring her dictionary.
A．As
B．Such
C．That
D．It
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