单项选择题

Although there are many predictions about the future, no one knows for sure ______ the world would be like in 50 years.

A. how
B. that
C. which
D. what
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单项选择题
It needs hardly be said that a man who could ______ such treatment was a man of remarkable physical courage and moral strength.
A. make the best of
B. catch up with
C. get rid of
D. put up with
单项选择题
I regret ______ those insulting words at the conference.
A. saying
B. to say
C. says
D. said
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