单项选择题

A ______ achievement of electronics is the electronic computer.

A．widely knowing
B．being widely known
C．widely known
D．having widely known
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单项选择题
If we ______ yesterday, we ______ the work.
A．weren't interrupted... would finish
B．didn't interrupt... would have finished
C．hadn't interrupted... had finished
D．hadn't been interrupted... would have finished
单项选择题
Give it to anybody ______ needs it.
A．who
B．whom
C．whomever
D．whose
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