单项选择题

Mary ______ that the purchase had been a mistake. However, she didn't.

A. ought to acknowledged
B. ought to have acknowledged
C. should acknowledge
D. should be acknowledging
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单项选择题
They began to sail around the world single-handed at _________ the same age, but their results were quite different.
A. approximately
B. appropriately
C. closely
D. similarly
单项选择题
I don't remember saying anything like that. You are purposely ______ my words to prove your point.
A. contradicting
B. revising
C. distracting
D. distorting
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