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				 I    asleep because it took me a long time to realize that the telephone was      ringing.           A. could have fallen           B. should have fallen  C. must have fallen           D. mustn't have fallen			【查看更多】
			


		
           
          


		
          
		
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          I ________ asleep
because it took me a long time to realize that the telephone was ringing.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
          


          　 A. could
fall        B. need have fallen    
C. must have fallen 　    D. may fall
          


           
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
           
          


           I____ asleep
because it took me a long time to realize that the telephone was ringing.
          


          A. could have
fallen      B. should have fallen   
          


          C. must have
fallen       D. mustn’t have fallen
          


           
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          I ________ asleep because it took me a long time to realize that the telephone was ringing.

          1. A.
            could fall
          2. B.
            need have fallen
          3. C.
            must have fallen
          4. D.
            may fall
          

			
          
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          I____ asleep because it took me a long time to realize that the telephone was ringing

          1. A.
            could have fallen
          2. B.
            should have fallen
          3. C.
            must have fallen
          4. D.
            mustn’t have fallen
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
            
           I____ asleep because it took me a long time to realize that the telephone was ringing.
            
          A. could have fallen      B. should have fallen   
            
          C. must have fallen       D. mustn’t have fallen
          

			
          
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