问题描述: I usually wear a skirt___it is very coldA if B as C until 1个回答 分类:英语 2014-11-22 问题解答: 我来补答 until 选C表示原因用asif-假如until-直到句意:我通常穿一件衬衫,(直到)天气非常冷. 展开全文阅读