Nobody can learn English well _____ you work hard on it.[ ]A. ifB. unlessC. whenD. but-九年级英语

题目简介

Nobody can learn English well _____ you work hard on it.[ ]A. ifB. unlessC. whenD. but-九年级英语

题目详情

Nobody can learn English well _____ you work hard on it.
[     ]
A. if
B. unless
C. when
D. but
题型:单选题难度:中档来源:同步题

答案

B

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