John and I have been friends for eight years.We first got to know each other at a Christmas party.But we
had seenhad seen (see) each other couple of times before that.
【考點(diǎn)】過去完成時(shí).
【答案】had seen
【解答】
【點(diǎn)評】
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發(fā)布:2024/5/27 14:0:0組卷:0引用:2難度:0.6
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