题目内容
I know Mr.Brown.We ________ to each other at an international conference.
[ ]
A.were introduced
B.have been introduced
C.are introduced
D.had introduced
答案:A
解析:
解析:
|
introduce同we之间存在被动关系。由at an international conference可知,句子表示的是过去的意义。 |
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