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
You can't let the situation get worse. You must take ______.
A．decisions
B．sides
C．directions
D．steps
单项选择题
Scarcely had her husband arrived home ______ his wife started complaining.
A．when
B．that
C．than
D．and
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