单项选择题

Common cold ______ neither age nor sex.

A．saves
B．covers
C．spares
D．causes
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单项选择题
All ______ live must die.
A．which
B．who
C．that
D．whom
单项选择题
We should be able to do the job for you quickly, ______ you give us all the necessary information.
A．provided that
B．or else
C．as if
D．in case
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