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          E-books ______ in the 1990s. 

          A.appear 
          B.appeared 
          C.was appeared 
          D.have been appeared 
          			
          

			
			
			
		
          



							
          
				相關習題
			
          	
						
          
			
          
				科目：初中英語
				來源：0101    期中題
				題型：單選題
			
          
									
          E-books ______ in the 1990s. 
          

          [     ]
          A.appear 
          B.appeared 
          C.was appeared 
          D.have been appeared 
          

			
          
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