单项选择题

He asked me ______ I can help him with the experiment.

A． that
B． what
C． if
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单项选择题
She won______.
A． the girl 400 metre race
B． the girl's 400 metres race
C． the girl's 400 metre race (竞赛)
单项选择题
It ______ about half an hour to fly to Shanghai from here.
A． spends
B． uses
C． takes
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