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				43．――Look, the  light in the teacher' s office is still on．Mr. Li is working them．He always    works late at  night．  ――It       be Mr. Li．He’s  gone to London for a visit．A．can’t         B．mustn’t        C．may       D．needn’t			【查看更多】
			


		
           
          


		
          
		
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          －Look, the light in the teacher’s office is still on．Mr Li is working there．He always works late at night．
          

          －It ________ be Mr Li．He has gone to London for a short visit．
          

          

          [　　]
          

          A．can’t
          

          

          B．mustn’t
          

          

          C．may
          

          

          D．must
          

          

          

			
          
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          --- Look, the light in the teacher's office is still on. Mr Li is working there. He always works late at night.
          

          --- It ________ be Mr Li. He has gone to London for a short visit.
          

          [　　]
          

          

          A．can't
          B．mustn't
          

          C．may
          D．must
          

          

          

          

			
          
				查看答案和解析>>
			
          
		
          
						
          
				
          
	
          
	
          
		
          


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