is a good form of exercises for both young and old. [ ] A. The walkB. Walking C.
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![is a good form of exercises for both young and old. [ ] A. The walkB. Walking C.](/pic/43_953477.jpg)
_______is a good form of exercises for both young and old.
[]
A. The walkB. WalkingC. To walkD. Walk
试题答案
答案：B
提示：根据句型结构，该题所填部分为主语. walk虽可作名词，但它常用于go for a walk，take a walk等短语中，故排除A、D. C项to walk虽可作主语，但不定式作主语通常指具体的动作.在此句中的“散步”为抽象动作，只有选B项这个动名词了. |