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                题目内容
                (大学英语1)
            
            
                3. I hope that they____this challenge.
A.stay up
B. take up
C.weigh up.
D.set up
                    
                    
                    
                
                
                
            
        A.stay up
B. take up
C.weigh up.
D.set up
参考答案
 
                