While ( ),he became increasingly restless.选项:a、he

发布时间：2021-02-23 21:58:03

While ( ),he became increasingly restless.选项:a、he waitingb、waitingc、was waitingd、wait

网友回答

B while doing sth
======以下答案可供参考======
供参考答案1:
选b供参考答案2:
b这里用的是非谓语
供参考答案3:
B.waiting
此处while后面省略了he was
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