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          He ___ to bed, for the light is out.
            
              A.must have gone   B.must go    C.can have gone   D.can go
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A
             
          解析:
               
          must have done表示對過去事情的肯定推測。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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