摘要： It was quite a serious mistake, caused by carelessness. A. which I think was B. I think which was C. which was I think D. I think was which
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It was quite a serious mistake, ____caused by carelessness.
A. which I think was B. I think which was
C. which I think it was D. I think which it was
查看习题详情和答案>>It was quite a serious mistake, ____caused by carelessness.
A. which I think was B. I think which was
C. which I think it was D. I think which it was
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