日韩亚洲一区中文字幕,日韩欧美三级中文字幕在线,国产伦精品一区二区三区,免费在线欧美性爱链接

      1. <sub id="o5kww"></sub>
        
<legend id="o5kww"></legend>
        <style id="o5kww"><abbr id="o5kww"></abbr></style>
        <strong id="o5kww"><u id="o5kww"></u></strong>
        

        2. 


          
	
          
		
	
          
	
          
		
          
			
		
          
		
          
	
          

          



          

          

          


          


          
	
          
			
          

			
          
				
            — Has Sam finished his homework today ?
            
          — I have no idea. He ______ it this morning. 
            
          A. did       B. has done        C. was doing      D. had done 
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
             
          解析:
               
          根據(jù)后面時間狀語this morning可判斷為過去時，排除B；進行體表示“示完成性，暫時性，感情色彩”。結(jié)合上句，不知道Sam是否做完，所以C 項是最佳答案。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
				練習(xí)冊系列答案
		
          
		
				
			

					
          
				相關(guān)習(xí)題
			
          
						
		
          
			
          
				科目：高中英語
				來源：
				題型：
			
          

						
          —Has Sam finished his homework??
            
          —I have no idea. He _____ it this morning.?
            
          A.did?
            
          B.has done?
            
          C.was doing?
            
          D.had done?
          

			
          

			
          
			查看答案和解析>>		
          
				
		
          
			
          
				科目：高中英語
				來源：2012-2013學(xué)年陜西省高三第一次月考英語試卷（解析版）
				題型：單項填空
			
          

						
          —Has Sam
finished his homework today?
          


          —I have no idea. He ________ it this morning. 
          


          A.
did            B. has
done                                 C.
was doing       D. had done
          


           
          

			
          

			
          
			查看答案和解析>>		
          
				
		
          
			
          
				科目：高中英語
				來源：2011-2012學(xué)年山東省兗州市高三入學(xué)摸底考試（英語）
				題型：單項填空
			
          

						
          — Has Sam finished his homework today?　　
          


          — I have no idea. He ________ it this
morning.　　
          


          
 
          
  
  
          A．did
          
            		
  
  
          B．was doing
          
            		
  
  
          C．has done
          
            		
  
  
          D．had done
          
            		
 
          

          


           
          

			
          

			
          
			查看答案和解析>>		
          
				
		
          
			
          
				科目：高中英語
				來源：20102011河南省高二第二次月考英語試題
				題型：單項填空
			
          

						
          ---- Has Sam finished his homework today?
          


             ---- I have no idea. He ________
it this morning.
          


             A.
did              B.
has done         C. was
doing        D. had done
          


           
          

			
          

			
          
			查看答案和解析>>		
          
			
          
	
          
		
          


          同步練習(xí)冊答案