问题

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

正确答案是：

同类题型

下列各句中，没有语病的一项是（）

Scientists say human activity contributes to climate change, but they do not agree on the rate_______ climate change may be developing

g the firm as aclerk, he got rapid promotion , and_______as a manager

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I can’t imagine Phelps was caught smoking on campus!—_______