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题目
题型:专项题难度:来源:
Earth is believed ____ by an object the size of Mars at some point in the distant past before its surface
cooled.[     ]
A. to be hit
B. to have hit
C. to have been hit
D. to hit
答案
C
核心考点
试题【Earth is believed ____ by an object the size of Mars at some point in the distan】;主要考察你对不定式等知识点的理解。[详细]
举一反三
Harrison Ford is thought to be one of the few movie stars as a carpenter before.[     ]
A. to work
B. to be working
C. to have worked
D. to have been working
题型:专项题难度:| 查看答案
Your sister is said ______ in the supermarket when she was doing shopping yesterday.
A. to be badly treated
B. treating badly
C. being badly treated
D. to have been badly treated
题型:同步题难度:| 查看答案
—Is Bob still performing?  
—I"m afraid not. He is said _____ the stage already as he has become an official.    
A. to have left              
B. to leave    
C. to have been left        
D. to be left
题型:同步题难度:| 查看答案
The bank is reported in the local newspaper _____ in broad daylight yesterday.     [     ]
A. being robbed              
B. having been robbed    
C. to have been robbed        
D. robbed
题型:同步题难度:| 查看答案
The split between humans and living apes is thought by some scholars ____ 15 to 20 million years ago.[      ]
A. to occur
B. occurring
C. to have occurred
D. having occurred
题型:专项题难度:| 查看答案
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