He has ______ his fortune many times since he began to deal in second-hand car business.
[     ]
A. added to    
B. created      
C. multiplied  
D. risen
Oxygen usually ______ in the form of gas in nature but when made cold enough, it can also take
the form of solid.    
[     ]

A. remains    
B. stays    
B. exists  
D. survives 

It is predicted that a comet will probably hit the earth in about 10 years and scientists all over
the world are thinking about possible ways to ________it from happening. Which of the following
is not OK?   
[     ]

A. protect    
B. stop    
C. keep    
D. prevent

Astronauts in a spaceship have to _______weightless conditions _______are quite different from ______ on the earth.      
[     ]
A. do with; which; those  
B. deal with; that; that  
C. face; which; those  
D. solve; where; what
Every time our teacher began his lesson, my mind would begin to ________, not intentionally
but habitually.
[     ]
A. wander
B. wonder
C. think about
D. hide away
Smoking is not _______ in this factory but it is _______ in certain workshops.
[     ]
A. permitted; allowed
B. allowed; permitted
C. admitted; permitted
D. permitted; admitted
The guard at the entrance didn’t ______ me in though I had begged him many times.     
[     ]

A. agree  
B. permit    
C. allow  
D. make

Theme park owners _____ their profit ____ charging admission fees, ______ new brand athletic
equipment and selling souvenirs.
[     ]
A. have; from; advertising for          
B. make; by; advertising  
C. gain; with; advertising              
D. benefit; through; advertising for
People full of fantasies are said to be _______.
[     ]
A. imaginative  
B. imaginary  
C. creative  
D. original
Personalities ______ from one person to another, ______everybody has his or her own personalities.     
[     ]
A. change; which is to say  
B. change; as is to say  
C. vary; that is to say  
D. vary; what is to say
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