单项选择题

The new factory produces cars______ the rate of 500 a week.

A．on
B．at
C．in
D．with
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单项选择题
It is important that the committee______ about the project at once.
A．will be informed
B．is informed
C．being informed
D．be informed
单项选择题
______strong and tall, he can be a successful sportsman.
A．Being
B．To be
C．Been
D．Having been
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