问题
选择题
_____ you call me to say you' re not coming, I'll see you at the theatre.[ ]
A.Though
B.Whether
C.Until
D.Unless
答案
答案：D
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_____ you call me to say you' re not coming, I'll see you at the theatre.[ ]
A.Though
B.Whether
C.Until
D.Unless
答案：D