◎ 题干
You'll fail your next exam _______ you start to work hard at your lessons now.
[     ]
A.because        
B.if    
C.so          
D.unless
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“You'll fail your next exam _______ you start to work hard at your lessons now.[ ]A.because B.if C.so D.unless…”主要考查了你对  【从属连词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。