--I don't think we have met before.
--Yes, once at a party, but we___________.
A．weren't introducedB．didn't introduce
C．haven't introducedD．were not introducing
A
本題是動(dòng)詞的語(yǔ)態(tài)考查。introduce是及物動(dòng)詞，后面需要有一個(gè)名詞。本題中introduce后沒(méi)有賓語(yǔ)，所以用被動(dòng)，意思是：“但是沒(méi)有給我們介紹�！�
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