题目内容
You’d better take some medicine with you before you leave________someone gets sick.
A.so that B.the moment
C.as long as D.in case
D
句意:你最好离开前带着药,以防有人生病。A项“目的是,为了”;B项作连词时意为“一……就”;C项“只要”;D项“以防,万一”。结合句意选D。
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