Do you have any idea _____on earth has happened to our  friend?    

A. that        
B. what            
C. as                
D. which
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科目:高中英語 來源:吉林省期中題 題型:單選題

Do you have any idea ______ on earth has happened to our friend?
[     ]
A. that          
B. what          
C. as            
D. which

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科目:高中英語 來源:同步題 題型:單選題

Do you have any idea _____on earth has happened to our  friend?    
[     ]
A. that        
B. what            
C. as                
D. which

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科目:高中英語 來源:吉林省長春外國語學(xué)校2011-2012學(xué)年高一下學(xué)期期中考試英語試題 題型:016

Do you have any idea ________ on earth has happened to our friend?

[  ]

A.that

B.what

C.as

D.which

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