He is very humorous, while his brother is rather serious. That is their difference lies.A.

发布时间：2020-08-16 08:39:55

He is very humorous, while his brother is rather serious. That is     their difference lies.
A. why
B. where
C. how
D. when

网友回答

A. why
(答案→)B. where
C. how
D. when
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