Shall Mary come to the concert with us？－Notshe has finished her paperA. sinceB. onceC. w

发布时间：2020-08-17 11:59:22

Shall Mary e to the concert with us？
－Not    she has finished her paper．
A. since
B. once
C. when
D. unless

网友回答

A. since
B. once
C. when
(答案→)D. unless
解析：由句意得知，补全句子应该是Mary does not e to the concert with us unless she has finished her paper.
以上问题属网友观点，不代表本站立场，仅供参考！