单项选择题

He has a clear（）of what needs to be done.

A. knowing
B. understanding
C. learning
D. meaning

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单项选择题
Each apartment could（）a family of six.

A. house
B. cover
C. make
D. settle
单项选择题
Fortunately, the demonstration（）to be quite peaceful.

A. turned in
B. turned out
C. showed off
D. showed up
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