单项选择题

Now, she is upstairs （）a long speech for the president.

A. preparing
B. was preparing
C. prepared
D. to prepare

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单项选择题

I（）her to give up taking the medicine but she refused.

A. advised
B. suggested
C. persuaded
D. hoped

单项选择题

（）more attention, the young trees could have grown much better.

A. To give
B. Given
C. Give
D. Having given

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