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题目
题型:江苏省模拟题难度:来源:
David didn"t give up ______ he had failed in the experiment four times.      [     ]
A. if            
B. while        
C. though        
D.since
答案
C
核心考点
试题【David didn"t give up ______ he had failed in the experiment four times.      [  】;主要考察你对从属连词等知识点的理解。[详细]
举一反三
I don"t have to introduce him to you _____ you know the boy.   [     ]
A. until        
B. unless          
C. since            
D. but
题型:模拟题难度:| 查看答案
They won"t give up _____ they have failed several times.   [     ]
A. as a result        
B. in order that      
C. although        
D. since
题型:江苏期中题难度:| 查看答案
Little Mary won’t go to sleep             her mother tells her an interesting bedtime story.[     ]
A.or
B.unless
C.but
D.whether
题型:江苏期中题难度:| 查看答案
It is difficult for us to learn a lesson in life _____ we"ve actually had that lesson.[     ]
A. when
B. after
C. since
D. until
题型:江苏期中题难度:| 查看答案
—Did you return Helen"s call?  
—I didn"t need to _________ I"ll see her tomorrow.    [     ]
A. though      
B. unless          
C. when          
D. because
题型:期中题难度:| 查看答案
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