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				22．--The light in Mr．Wang’s  room is on．I am sure  he               now．  ---I agree．He usually stays up late every  night． A．might work  B．must be working  C．must work  D．can be working			【查看更多】
			


		
           
          


		
          
		
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          --The light in Mr．Wang’s room is on．I am sure he______________ now．
            
          ---I agree．He usually stays up late every night．
            
          A．might work    B．must be working    C．must work    D．can be working
          

			
          
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