The flowers his friend gavehim will die unless______ every day.    
   [     ]
A. watered    
B. watering    
C. water    
D. to water
___________for the break down of the school computer network, Alice was in low spirits.   
[     ]
A. Blaming    
B. Blamed    
C. To blame    
D.To be blamed
_________ by the advances in technology , many farmers have set up wind farms on their land.    
[     ]
A. Being encouraged            
B. Encouraging   
C. Encouraged                  
D. Having encouraged
_________ twice , the postman refused to deliver our letters unless we chained our dog.
[     ]
A. Being bitten                  
B. Bitten
C. Having bitten                
D. To be bitten
 _____ about the safety of her son, John's mother looked upset.
[     ]
A. Concerning    
B. Concerned    
C. To concern    
D. Concern
Thanks to the measures ______ by the local government , the polluted river is becoming clearer and
clearer and fish have begun to show up in it.
[     ]
A. taking        
B. taken
C. to take          
D. having taken
_____ alone in the large house, the little boy had to learn to survive by himself.  
[     ]

A. To leave  
B. Leaving    
C. Left        
D. Being left

When the man came in, gun in hand, we all stood there, ________.
[     ]
A. astonished
B. astonishing
C. being astonished
D. having astonished
White papers have played a more important role in introducing China to the world, with more white
papers ______ by the government in 2011 than any other year. 
[     ]
A. published      
B. to publish      
C. publishing  
D. being published
What a great weight Jane felt ________ off her mind the moment she heard she had passed the College
Entrance Examination! 
[    ]
A. take
B. to take
C. taking
D. taken
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