Question

【题目】The art club is for members only. You can't go in _____ you are a member.
A.unless
B.because
C.if
D.though

Answer 1

【答案】A
【解析】unless除非，如果不；because因为；if如果，是否；though尽管。句意：这个艺术俱乐部指针对成员开放。你如果不是成员就不能进去。故选A。