You should not go rafting __________ you know how to swim, and you should always

You should not go rafting __________ you know how to swim, and you should always

题型:河北省期中题难度:来源:
You should not go rafting __________ you know how to swim, and you should always wear
 a life jacket. [     ]
A. though
B. unless
C. until
D. if 
答案
B
举一反三
I don"t want to go _______ I am tired of any party.   [     ]
A. because of    
B. in order to    
C. because      
D. in order that
题型:北京期中题难度:| 查看答案
Her wish is        she could lose weight soon.[     ]
A. which          
B. that            
C. why          
D. /
题型:北京期中题难度:| 查看答案
       I admit that there are problems, I don"t agree that they can"t be solved. [     ]
A. If  
B. As
C. While   
D. Since
题型:贵州省月考题难度:| 查看答案
Early in his life, he learned to treasure the work of other people         he helped his father do the farming.  [     ]
A. where
B. what
C. when
D. whom
题型:湖南省月考题难度:| 查看答案
I advise you leave the company as soon as possible          you get yourself into trouble.  [      ]
A. before    
B. until
C. as soon as
D. in that case
题型:湖南省月考题难度:| 查看答案
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