--Do you remember___to Dr.Green during your last visit?--Certainly I do.(A)to be introduced(B)having introduced(C)being introduced(D)to have been introduced

问题描述:

--Do you remember___to Dr.Green during your last visit?--Certainly I do.
(A)to be introduced(B)having introduced
(C)being introduced(D)to have been introduced

C,解释起来比较麻烦
你可以看看选什么的人比较多
不过也可以相信我
我6级老早过了