单选题
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试题题干

My mother knows Jane. They ( )to each other at a party.

A

have been introduced

B

are introduced

C

were introduced

D

had been introduced

参考答案

正确答案:

试题解析

题中动作发生在过去,是一般过去时,而不是现在完成时和一般现在时,更不是过去完成时,故选C。