People have always been curious how living things on the earth exactly began.A. inB. at C

发布时间：2020-08-17 14:51:26

People have always been curious      how living things on the earth exactly began.
A. in
B. at
C. of
D. about

网友回答

A. in
B. at
C. of
(答案→)D. about
解析：curious常与介词about搭配，构成be curious about，意为“对……感到好奇”。句意：人们总是对地球上生物是如何产生的感到好奇。
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