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          —Have you solved your problem ?
          —No, I really don’t know______
          A. how to do with  B. what to do  C. what can I do 
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B
          考查疑問詞+不定式作賓語。句意：你解決了你的問題了嗎？沒有，我真的不知道怎么做。所以選B，A項how不能與do with連用。C項應(yīng)用陳述句語序。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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