单项选择题

The electric shaver needs ______ before it can be used.

A．repairing
B．to repair
C．being repaired
D．to be repairing
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单项选择题
John is the only one of the students who ______ to France.
A．has been
B．have been
C．had been
D．has being
单项选择题
The three boys were given work according to their ______ abilities.
A．respectful
B．respectable
C．respective
D．responsible
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