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题目
题型:同步题难度:来源:
It is said that potato chips            by mistake about a hundred years ago.[     ]
A. invent
B. invented
C. are invented
D. were invented
答案
D
核心考点
试题【It is said that potato chips            by mistake about a hundred years ago.[  】;主要考察你对一般过去时等知识点的理解。[详细]
举一反三
—Have you ever been to Shanghai, Mary?
—Yes. I _________ there for three days with my parents last month..[     ]
A. have gone  
B. have been
C. went      
D. was
题型:同步题难度:| 查看答案
—Mike,you"ve got so many beautiful stamps.
—Yeah. I _______ collect stamps when I was 8 years old.[     ]
A. was used to      
B. used to
C. am used to      
D. used
题型:同步题难度:| 查看答案
—Do you know when the 29th Olympic Games _______?
—Yes, in 2008. [     ]
A. hold      
B. is held  
C. was held    
D. was holding
题型:同步题难度:| 查看答案
My math teacher ________ me, because he ________ I failed my test.[     ]
A. is angry for, find out  
B. was angry with, found out
C. is angry with, find out  
D. was angry with, find in
题型:同步题难度:| 查看答案
The dinosaurs _____about 65 million years ago.    [     ]
A. were disappeared    
B. disappeared  
C. disappear          
D. was disappeared
题型:同步题难度:| 查看答案
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