If you don't know how___the right fork or knife,just watch the pther people,and follow them.

分类: 作业答案 • 2022-03-01 17:04:35

问题描述：

If you don't know how___the right fork or knife,just watch the pther people,and follow them.
A.choosing B.to choose C.how choosing
为什么选A,其他两个答案该怎么改?

答

B
疑问词+to do结构表示“该...”