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          While writing a letter, _____. 

          A. the door bell rang 
          B. the door bell rings 
          C. I heard the door bell ring 
          D. I heard the door bell rings 
          			
          

			
			
			
		
          



							
          
				相關習題
			
          	
						
          
			
          
				科目：高中英語
				來源：浙江省期中題
				題型：單選題
			
          
									
          While writing a letter, _____. 
          

          [     ]
          A. the door bell rang 
          B. the door bell rings 
          C. I heard the door bell ring 
          D. I heard the door bell rings 
          

			
          
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