A. turn off    
B. turn on    
C. to turn on    
D. to turn off

A. wearing
B. to wear
C. to be worn

1. People tell me how I can get to the station.
People tell me how ______ ______ ______ the station.
2. Mike didn't see anybody enter the building before ten.
Nobody ______ ______ ______ ______ the building before ten.
3. The bench was so long that all of us were able to sit on it.
The bench was long enough ______ ______ ______ ______ ______.
4. I think that it is important to master a foreign language.
I think ______ ______ ______ ______ a foreign language.
5. Mary spent three thousand yuan on the color TV set.
The color TV set ______ ______ three thousand yuan.
6. Of all the songs, this is the most popular.
This song is more popular ______ ______ ______ ______.
7. Mother didn't do the work for her little son, but taught him how to do it.
Instead of ______ ______ ______ ______ ______ ______ ______, she taught him how to do it.
8. I don't know either Russian or French.
I know ______ ______ ______ ______.
9. If you take a bus, you will get there in about two hours.
______ ______ ______ about two hours ______ ______ ______.
10. I'd rather watch TV at home than go to the cinema.
I prefer ______ ______ at home ______ ______ ______ the cinema.

A. buying                     
B. making  
C. to buy  
D. to make  

A. carries
B. carrying
C. carried
D. to carry

A. learn            
B. to learn      
C. learning    
D. learned

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

A. visit    
B. visiting      
C. visit to      
D. to visit

A. speak            
B. spoken          
C. speaking          
D. to speak

A. stays
B. stayed
C. to stay
D. staying