We'll have a picnic in the park this Sunday it rains or it's very cold.A. sinceB. ifC. un

发布时间：2020-08-17 08:36:24

We'll have a picnic in the park this Sunday      it rains or it's very cold.
A. since
B. if
C. unless
D. until

网友回答

A. since
B. if
(答案→)C. unless
D. until
解析：
句意：除非下雨或天很冷，我们将在本周日去公园野餐。从句子之间的逻辑关系判断此处应为否定条件句，相当于if...not，故排除if，而选unless。A项since表因果关系。D项until只能引导时间状语从句，故排除。
以上问题属网友观点，不代表本站立场，仅供参考！