问题
选择题
I know Mr. Brown;we __ to each other at an international conference.
A.are introduced
B.have been introduced
C.were introduced
D.had been introduced
答案
答案:C
在一个国际会议上被介绍显然发生在过去。
I know Mr. Brown;we __ to each other at an international conference.
A.are introduced
B.have been introduced
C.were introduced
D.had been introduced
答案:C
在一个国际会议上被介绍显然发生在过去。