I didn’t manage to do it you had explained how.A. unlessB. untilC. whenD. since

发布时间：2020-08-16 12:39:43

I didn’t manage to do it     you had explained how.
A. unless
B. until
C. when
D. since

网友回答

A. unless
(答案→)B. until
C. when
D. since
解析：可联系答.案.网客服索取。
以上问题属网友观点，不代表本站立场，仅供参考！