Not until I began to work ____ realize how much time I had wasted. [     ]A. did

Not until I began to work ____ realize how much time I had wasted. [     ]A. did

题型:专项题难度:来源:
Not until I began to work ____ realize how much time I had wasted. [     ]
A. didn"t I 
B. did I 
C. I didn"t 
D. I
答案
B
举一反三
Many a time _____ swimming alone. [     ]
A. the boy went 
B. went the boy 
C. did the boy go 
D. did go the boy
题型:专项题难度:| 查看答案
Only after ____ to go to school. [     ]
A. New China was founded; he was able
B. was New China founded; was he able
C. New China came into being; was he able
D. New China founded; he was able
题型:专项题难度:| 查看答案
Little ____ about his own safety, though he was in great danger himself. [     ]
A. does he care
B. did he care
C. he cares
D. he cared
题型:专项题难度:| 查看答案
Not until all the fish died in the river ____ how serious the pollution was. [     ]
A. did the villagers realize
B. the villagers realized
C. the villagers did realize
D. didn"t the villagers realize
题型:专项题难度:| 查看答案
No sooner ____ to the cinema ____ the film began. [     ]
A. had he got, than
B. he had got, when
C. did he get, than
D. had he got, when
题型:专项题难度:| 查看答案
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