【题目】_____ you receive my e-mail informing you of my absence, expect me on Friday at about 6 p.m.
A.UnlessB.UntilC.WhileD.Although
在线课程【答案】A
【解析】
考查状语从句。句意：除非你收到我的邮件，告知你我届时缺席，否则星期五下午六点左右等我。A. Unless除非；B. Until直到；C. While在……期间；D. Although尽管。根据句意可知，A项与语境相符。故选A