However busy we are, we need to take exercise. Not onlyus keep healthy, it also stops us g

发布时间：2020-08-16 11:07:47


However busy we are, we need to take exercise. Not only    us keep healthy, it also stops us getting fat.
A. it helps
B. helps it
C. it does help
D. does it help

网友回答

A. it helps
B. helps it
C. it does help
(答案→)D. does it help
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