单项选择题

You（）him out though you were very busy.

A. could have helped
B. must help
C. should have helped
D. ought to help

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She tried hard, but still couldn't make us（）our mind.

A. to change
B. change
C. turn
D. to turn
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It was dark. We decide to （）for the night at a beerhouse.

A. put away
B. put down
C. put up
D. put on
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