单项选择题

Hardly a month goes by without______ of another survey revealing new depths of scientific illiteracy among US citizens.

A．words
B．word
C．a word
D．the word
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单项选择题
Why shouldn't we use the garden, ______
A．weather permitting
B．weather permitted
C．weather permits
D．weather having been permitted
单项选择题
After making a great effort, we finally ______ the plan.
A．carded on
B．carded out
C．carried off
D．carded over
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