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				21．--Look, Mr.  King is swimming in the pool．--It     be Mr. King．He has gone to Kunming on vacation．A．can           B．can’t          C．must           D．mustn’t			【查看更多】
			


		
           
          


		
          
		
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          --Look, Mr. King is swimming in the pool．
            
          --It       be Mr. King．He has gone to Kunming on vacation．
            
          A．can                      B．can’t                   C．must                      D．mustn’t
          

			
          
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          －Look, Mr．King is swimming in the pool．
          

          －It ________ be Mr．King．He has gone to Kunming on vacation．
          

          

          [　　]
          

          A．can
          

          

          B．can't
          

          

          C．must
          

          

          D．mustn't
          

          

          

			
          
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