He left home in 1980 and has never come back . A. thoughB. whileC. whenD. since

发布时间：2020-08-16 07:35:12

He left home in 1980 and has never e back     .
A. though
B. while
C. when
D. since

网友回答

A. though
B. while
C. when
(答案→)D. since
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