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. 


          
	
          
		
	
          
	
          
		
          
			
		
          
		
          
	
          

          



          

          

          


          


          
	
          
			
          

          精英家教網 > 初中英語 > 題目詳情
          
			
          
				
          ﹣Why are the windows so dirty?
          ﹣Because we __________ them for a long time.
          A. have cleaned         B. haven’t cleaned         C. didn’t clean
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B

          試題分析: 句意：為什么窗戶那么臟？因為我們很長時間沒清潔了。for a long time很長時間，for加時間表一段時間，用于現在完成時，窗戶臟的原因是沒有清潔，故選B.
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
				練習冊系列答案
		
          
		
				
			

					
          
				相關習題
			
          
						
		
          
			
          
				科目：初中英語
				來源：不詳
				題型：單選題
			
          

						
          Trees and flowers ________every year to make our country more beautiful. 
          A．is plantedB．was plantedC．are plantedD．were planted
          

			
          

			
          
			查看答案和解析>>		
          
				
		
          
			
          
				科目：初中英語
				來源：不詳
				題型：單選題
			
          

						
          When I got home last night, my parents ____ for me at the table.
          A．waitB．waitedC．were waitingD．have waited
          

			
          

			
          
			查看答案和解析>>		
          
				
		
          
			
          
				科目：初中英語
				來源：不詳
				題型：單選題
			
          

						
          They_________ all their money, so they have to walk home now.
          A. spend     B. will spend      C. have spent       
          

			
          

			
          
			查看答案和解析>>		
          
				
		
          
			
          
				科目：初中英語
				來源：不詳
				題型：單選題
			
          

						
          ----When __________ they leave here ? ----Next Monday.
          A．doB．willC．doesD．are.
          

			
          

			
          
			查看答案和解析>>		
          
				
		
          
			
          
				科目：初中英語
				來源：不詳
				題型：單選題
			
          

						
          —Jim, could you tell me if you _____________ our party tomorrow?
          —I think I will if I _____________ free. 
          A．will take part in, will be B．take part in, am 
          C．will take part in, amD．would take part in, will be
          

			
          

			
          
			查看答案和解析>>		
          
				
		
          
			
          
				科目：初中英語
				來源：不詳
				題型：單選題
			
          

						
          The students told us _____________last summer vacation.
          A．where did they campB．where will they camp
          C．where they campedD．where they will camp
          

			
          

			
          
			查看答案和解析>>		
          
				
		
          
			
          
				科目：初中英語
				來源：不詳
				題型：單選題
			
          

						
          ---Have you seen Dr. Adams recently?
          ---No. He __________ Hong Kong for an important meeting. He’ll come back tomorrow.
          A．has gone inB．has been inC．has gone toD．has been to
          

			
          

			
          
			查看答案和解析>>		
          
				
		
          
			
          
				科目：初中英語
				來源：不詳
				題型：單選題
			
          

						
          — 　　　　 you see the film Journey to the West yesterday?
          —Yes. But the film 　　　　 for 5 minutes by the time I got there.
          A．Do; had begunB．Do; had been on
          C．Did; had begunD．Did; had been on
          

			
          

			
          
			查看答案和解析>>		
          
			
          
	
          
		
          


          同步練習冊答案