He wasn't heard ________ in the classroom.                
[     ]
A. to sing    
B. sing          
C. sings            
D. singings
Mr Brown asked us to stop ______ . and we stopped _  __  _ to him at once.      
[     ]
A. talking, to listen        
B. to talk, to listen      
C. talking, listening          
D. talk, listen
Did he give you permission ______ that?            
[     ]
A. to take        
B. taking          
C. take          
D. took
She pretended______when the teacher came into the classroom.    
[     ]
A. to sleep        
B. sleeping    
C. to be sleeping    
D. that she is sleeping
The dog pretends _____. Maybe it will bark _____ you.
[     ]
A. to be sleeping, ／    
B. to be sleeping,  at
C. be sleeping, at    
D. be sleeping, ／
Be sure _______ and tell me what happens.   
[     ]
A. writing    
B. wrote    
C. writes    
D. to write
用括号内所给词的适当形式填空
1. I'm __________(save) the money for my new bike.
2. If I had a 3-day holiday, I would go __________(sail). I think it would be
    very __________( fascinate).
3. Would you like __________(join) a swimming club?
4. He __________(buy) an apartment to live in.
5. We __________(especial) love hiking and swimming.
We students are made _____ our homework every day.
[     ]

A. doing    
B. to do    
C. do    
D. did

We should try our best_______that work.  
[     ]
A.  to finish    
B.  finishing    
C.  finish    
D.  doing
Dad, I volunteer my time            the trees.
[     ]
A. to plant          
B. planting        
C. planted          
D. be planted
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