企源知识库

You'd better take these documents with you _____ you need them for the meeting.
A、unless
B、in case
C、until
D、so that
【正确答案】：B
【题目解析】：unless除非；in case以防万一；until直到；so that以至于句意：你最好把这些文件带上，以防开会时需要用。