单项选择题

You ______ her at the beginning, but now it is too late.

A. ought to refuse
B. have ought to refuse
C. ought to have refused
D. ought have refused
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单项选择题
She doesn't talk much, but what she says makes______.
A. sense
B. idea
C. meaning
D. significance
单项选择题
When the whole area was ______ by the flood, the government sent food there by helicopter.
A. cut away
B. cut up
C. cut down
D. cut off
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