your hand over your mouth when you cough. A.PutB.PuttingC.To putD.To be putting
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______ your hand over your mouth when you cough.
| A.Put | B.Putting |
| C.To put | D.To be putting |
试题答案
A
解析

______ your hand over your mouth when you cough.
| A.Put | B.Putting |
| C.To put | D.To be putting |
A
解析