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          題目列表(包括答案和解析)
          

		
		
          

          


          
	
          				
          
									
          Christmas is ________ December 25th.
          

          [     ]
          A. on 
          B. in 
          C. at 
          D. to 
          

			
          
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          Christmas is ______ December 25th.
          

          [     ]
          A. on      
          B. in     
          C. at      
          D. to 
          

			
          
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          The door is     the wall.
            
          A. on                  B. in              C. at                D. to
          

			
          
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          The door is     the  wall.
              
                         A. on    B. in   C. at   D. to       
                  
          

			
          
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          They do some exercises _____Friday morning. 
          

          [     ]
          A. on 
          B. in 
          C. at 
          D. to 
          

			
          
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