______ your hand over your mouth when you cough. A．Put B．Putting C．To put D．To be putting
2023-01-03 07:11:57 64次 高考英语陷阱题总结归纳非谓语动词 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
______ your hand over your mouth when you
cough.
|
A．Put
|
B．Putting
|
|
C．To put
|
D．To be putting
|
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