问题
选择题
The art club is for members only. You can't go in _____ you are a member. [ ]
A. unless
B. because
C. if
D. though
答案
答案：A
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The art club is for members only. You can't go in _____ you are a member. [ ]
A. unless
B. because
C. if
D. though
答案：A