问题描述:
英语选择题,急求,具体语法讲清楚,谢了
Keeping a business card holder is a good habit to organize your social contacts. Don't miss an opportunity _______ you lost the right person's business card.
A,because B,until C,unless D,even though
老师说好像选A,讲的是否定前置,到底对不对?请教高人
Keeping a business card holder is a good habit to organize your social contacts. Don't miss an opportunity _______ you lost the right person's business card.
A,because B,until C,unless D,even though
老师说好像选A,讲的是否定前置,到底对不对?请教高人
问题解答:
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