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A. often              
B. many                 
C. much

(     ) 1. How many minutes do you walk?         
(     ) 2. How much exercise do you need?           
(     ) 3. What do you do after breakfast?  
(     ) 4. How often do you play basketball?    
(     ) 5. Do you want to be strong?
A. I need about twenty minutes of exercise.
B. Yes, I do.
C. About five minutes.
D. Three times a week.
E. I usually go to school.