单项选择题

All ______ is a continuous supply of the basic necessities of life.

A．what is needed
B．for our needs
C．the thing needed
D．that is needed
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单项选择题
John was young, ______, he was equal to this important task.
A．therefore
B．moreover
C．nevertheless
D．hence
单项选择题
The room was empty, but Tom felt that ______ was watching him.
A．anybody
B．nobody
C．somebody
D．everybody
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