By the time he realizes he _____ a mistake, it" ll be too late for him to change

By the time he realizes he _____ a mistake, it" ll be too late for him to change

题型:河北省期末题难度:来源:
By the time he realizes he _____ a mistake, it" ll be too late for him to change his mind.     [     ]
A. makes    
B. made    
C. has made    
D. had made
答案
C
举一反三
It is the first time I _____ visitors since I moved to London.[     ]
A. had had        
B. have had        
C. have            
D. had
题型:月考题难度:| 查看答案
Tom ______the girl that he ______four years ago.[     ]
A. married, engaged    
B. was married to, was engaged
C. has been married to, was engaged to  
D. married with, was engaged in
题型:安徽省月考题难度:| 查看答案
— Cathy, I have cleaned the room for you.
— Thanks. You _____ it. I could manage it myself.  [     ]
A. didn"t need to do   
B. needn"t have done  
C. mustn"t do      
D. shouldn"t have done
题型:山东省期末题难度:| 查看答案
— Look!  Somebody ________ the sofa.
— Well, it wasn"t me. I didn"t do it.       [     ]
A. is cleaning        
B. was cleaning      
C. has cleaned        
D. had cleaned
题型:专项题难度:| 查看答案
— I remember you were a talented pianist at college. Can you play the piano for me?  
— Sorry, I ________ the piano for years. [     ]
A. don"t play        
B. wasn"t playing
C. haven"t played    
D. hadn"t played
题型:专项题难度:| 查看答案
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