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				 ---         David be the new chairperson of the  Students’ Union?  ---  He        be, but I’m not sure.  A.  Can; can’t     B. Can; may    C.  May; must     D. May; mustn’t			【查看更多】
			


		
           
          


		
          
		
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          --- _________ David be the new chairperson of the Students’ Union?
           --- He ________ be, but I’m not sure.
          A．Can; can’tB．Can; mayC．May; mustD．May; mustn’t
          

			
          
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          --- _______ David be the new chairperson of the Students’ Union?
            
          --- He ______ be, but I’m not sure.
            
          A. Can; can’t      B. Can; may        C. May; must      D. May; mustn’t
          

			
          
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          —_____ David be the new chairperson of the Students' Union?
          —He _____be, as you know, he is quite excellent but I'm not sure.
          

          [     ]
          A. Can; can't
          B. May; must
          C. Can; may
          D. May; mustn't
          

			
          
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          －________ David be the new chairperson of the Students’ Union?
          

          －He ________ be, but I'm not sure．
          

          

          [　　]
          

          A．Can; can't
          

          

          B．Can; may
          

          

          C．May; must
          

          

          D．May; mustn't
          

          

          

			
          
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