{01}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
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。 本题选C。 {02—Where"s that report? —I brought it to you ________ you were in Mr.Black"s office yesterday.
点击加载更多评论>>