People are puzzled ________ they read the book. A. the first time B. at the first time C. for the f...
2023-01-26 03:36:24 54次 2010年浙江省高二上学期期中考试英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
People
are puzzled ________ they read the book.
A. the first time B. at the first time C.
for the first time D. at first
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