.The young the vital forces in our society.A. isB. has beenC. areD. have been

发布时间：2020-08-16 07:16:37


. The young      the vital forces in our society.
A. is
B. has been
C. are
D. have been

网友回答

A. is
B. has been
(答案→)C. are
D. have been
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