The book _____ he bought yesterday is very interesting. A. \ B. why C. when D. what
2023-01-28 19:17:07 62次 2010年吉林省高二下学期期末考试英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The book _____ he bought yesterday is very interesting.
A. \ B.
why C. when D. what
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