单项选择题

Cotton production has been ________ the decline these years.

A．down
B．on
C．at
D．under
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单项选择题
When required by their parents to eat vegetables, many children only do so ________.
A．willingly
B．impossibly
C．unknowingly
D．reluctantly
单项选择题
When people are asked what kind of housing they need or want, the question ________ a variety of answers.
A．defies
B．magnifies
C．mediates
D．evokes
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