It has been proved taking exercise regularly does good to one’s health.A. whetherB. whenC.

发布时间：2020-08-15 02:23:46

It has been proved     taking exercise regularly does good to one’s health.
A. whether
B. when
C. what
D. that

网友回答

A. whether
B. when
C. what
(答案→)D. that
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