If you don't know how___the right fork or knife,just watch the pt_其他解答

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?

人气：211 ℃　时间：2020-06-17 01:55:56

解答

B
疑问词+to do结构表示“该...”