单项选择题

The human body is composed of organs, each （） a definite job to do.

A．have
B．has
C．to have
D．having

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单项选择题
I wish I （） with you to the movie last night.

A．have gone
B．go
C．had gone
D．could go
单项选择题
It has been proved that cockroaches (蝉螂) （） for several weeks even after their heads have been cut off.

A．are surviving
B．can survive
C．surviving
D．that survive
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