The sale usually takes place outside the house, with the people watching ________ on benches, chairs or boxes.
[     ]
A．having seated  
B．seating
C．seated  
D．having been seated
Mrs. White found her husband ______ by letters and papers and ______ very worried. 
[     ]
A. surrounding;looked    
B. surrounded;looked  
C. surrounding; looking    
D. surrounded; looking  
Michael's new house is like a huge palace, _____ with his old one.                                       
[     ]
A. comparing                    
B. compares    
C. to compare                   
D. compared
______ to use in January, 2010, the road has solved the longstanding problem of traffic jams of this area.
[     ]
A．Put  
B．Putting
C．Having put  
D．Being put
When ________ what his problem was, the boy lowered his head and kept silent.
[     ]

A. asking  
B. asked
C. having asked  
D. having been asked

With our knowledge ________ practice, we can make contributions to our society.
[     ]
A．to base on  
B．basing on
C．based on  
D．base on
— Are you glad that you came to Fuzhou?   
—  Yes, indeed. I ________ going to Beijng or Shanghai.
[     ]
A. have considered
B. am considering
C. had considered
D. was considering
Though ________ of danger, sightseers have been flocking(簇拥) to the site where the world's biggest
terrorist Bin Laden lived.
[     ]
A. warned          
B. warning          
C. being warned    
D. having warned
________ to be the best student, Lucy received a scholarship this year.
[     ]
A．Judging  
B．To judge
C．Judged  
D．Being judged
Please remain _____ until the plane has come to a complete stop.                                                    
[     ]
A. to seat   
B. to be seated   
C. seating   
D. seated
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