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I didn’t know this was the first time you _________ here.I _____ you had been here at least once

分类: 作业答案 • 2021-12-28 18:59:58
问题描述：

I didn’t know this was the first time you _________ here.I _____ you had been here at least once
A.have come; think
B.has come; have thought
C.had come; have thought
D.had come; thought

答

D 第一个用完成时态,第二个”认为“是过去的事,现在已经不这样认为为什么一个用过去完成时简单点说就是”第几次做某事、第几个做某事“接从句都要用完成时态，前面是is就用现在完成时，前面是was就用过去完成时

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