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. 


          
	
          
		
	
          
	
          
		
          
			
		
          
		
          
	
          

          



          

          

          


          

          
	
          
				
          

			
				5．―Has Jack finished his homework yet? I am waiting  for him．  ―I've no idea．But  he         on  it the whole afternoon．A．is working         B．works           C．was working      D．works			【查看更多】
			


		
           
          


		
          
		
          題目列表(包括答案和解析)
          

		
		
          

          


          
	
          				
          
									
          ---Has Jack finished painting the picture yet?
          


          --- I’ve no idea. But he______ it the whole afternoon.
          


          A．was painting       B．painted           C．had painted        D．have painted
          


           
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          ---Has Jack finished painting the picture yet?
          --- I’ve no idea. But he______ it the whole afternoon.
          A．was paintingB．paintedC．had paintedD．have painted
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          動(dòng)詞填空 
              
          1.  ---Where’s Mr. Green? ----He’s gone to Shanghai. He ____________(return) in a  few weeks.
              
          2.  Many changes _____________ (take) place in our daily life since the invention  of the computer.
              
          3.  Now most students ____________(ask) to so some extra homework at weekends.
              
          4.  It’s necessary for you to spend as much time as you can ___________(speak)  English in and after class.
              
          5.  The earthquake hit the city and _____________(destroy) many buildings.
              
          6.  We should think about what we can do ____________ (keep) animals and plants  from becoming endangered.
              
          7.  ---Has Jack finished his homework yet?
              
             ---I’ve no idea, but he ________________(do) it the whole morning.
              
          8.  Now advertisements can______________(see) in newspapers, on TV and in the  streets.
              
          1.____________   2.____________  3._____________   4.____________
              
          5.____________  6.____________   7._____________   8.____________
              
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          動(dòng)詞填空。
          用括號(hào)內(nèi)所給動(dòng)詞的適當(dāng)形式填空。
          1. He spent as much time as he could ________(practice) writing in Chinese. 
          2. The elderly in China, as we all know, _________(take) good care of.
           3. — Has Jack finished his homework yet?
              — I've no idea, but he _________ (do) it the whole afternoon. 
          4. I think these problems can_________(deal) with as soon as possible. 
          5. — Have you taken your medicine today? 
              — Yes, I_________ (take) it after breakfast. 
          6. The audience are required _________ (show) their tickets when they enter the cinema. 
          7. Tim as well as Tom ________(eat) up all the food, but they still feel hungry. 
          8. My friend said he _____ (not reply)to my last three e-mails yet. 
          9. Uncle Wang is a warm-hearted person. He never ________ (refuse) to help his neighbors. 
          10. Millie said she ________(return) the two magazines to the library in three days. 
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          —Has Jack finished his homework yet? I am waiting for him. 
          —I've no idea. But he _____ on it the whole afternoon.
          

          [     ]
          A. is working 
          B. works
          C. was working
          D. worked 
          

			
          
				查看答案和解析>>
			
          
		
          
						
          
				
          
	
          
	
          
		
          


          同步練習(xí)冊(cè)答案