Ex 6,8,10 помогите пожалуйста))))))))

6) 1. The sun doesn't set in the East.
     2. Hens don't eat foxes.
     3.Blacksmiths don't make things from wood.
     4. The river Dvina doesn't flow into the black sea.
 
8)  1.How often does Felix watch birds?
     2. How often do you write to your parents?
     3. What time do you usually have dinner int he evening?
     4. Where does she work?
     5. How often do you go to the zoo?
     6. Why do people do stupid things?
     7. Why does the motor break down?
Прости 10 не знаю.