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				 He was a good swimmer so he           swim to the river bank when the boat sank.    A. could  B. might  C. should  D. was able to			【查看更多】
			


		
           
          


		
          
		
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          He was a good swimmer so he ________ swim to the river bank when the boat sank.

          1. A.
            could
          2. B.
            was able to
          3. C.
            succeeded
          4. D.
            might
          

			
          
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          He was a good swimmer so he _____ swim to the river bank when the boat sank.    
          

          [     ]
          A. is able to     
          B. could   
          C. was able to     
          D. can 
          

			
          
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          He was a good swimmer, so he ______ swim to the river bank when the boat sank.
          A. could                             B. might                      C. was able to              D. must
          

			
          
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          He was so good a swimmer that he ________ swim to the river bank when the boat sank.
          

          [　　]
          

          

          A．could
          B．might
          C．can
          D．was able to
          

          

          

          

			
          
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          He was so good a swimmer that he ________ swim to the river bank when the boat sank.
          

          [　　]
          

          

          A．could
          B．might
          C．can
          D．was able to
          

          

          

          

			
          
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