单项选择题

To tell you the truth, I did extract several passages from the speech when writing my speech.

A. take out
B. take off
C. take on
D. take up
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单项选择题
It is not clear whether the increase in reports is stemmed from greater human activity or is simply the result of more surveys.
A. flows
B. comes
C. derives
D. originates
单项选择题
He expressed concern that the ship might be in danger.
A. worry
B. difficulties
C. need
D. danger
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