People have always been curious _________ how living things on the earth began. A. in B. at C. of D....
2023-01-28 18:59:07 182次 2010年吉林省高一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：
People have always been curious _________
how living things on the earth began.
A.
in B.
at C.
of D. about
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