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           Jane is supposed to stop working. She has a serious headache because she ______  all the morning .
            
             A. wrote    B. is writing    C. had written    D. has been writing
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D 
             
          解析:
               
          根據(jù)時(shí)間狀語(yǔ)可知，整個(gè)早上Jane都一直寫作，用現(xiàn)在完成進(jìn)行時(shí)，表示從過去某時(shí)開始，一直延續(xù)到說話時(shí)刻，可能剛剛結(jié)束的動(dòng)作。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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