33．the activities might seem childish, in reality they require a lot of strength and deter

发布时间：2020-08-16 06:57:19


33．    the activities might seem childish, in reality they require a lot of strength and determination.
A. When
B. As
C. While
D. Once

网友回答

A. When
B. As
(答案→)C. While
D. Once
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