Rewrite the sentences so that the meaning doesn't change

Ex1. Rewrite the sentences so that the meaning doesn't change.
1.This is the most interesting novel I have ever had
=> I have never
2. You study hard you become successful 
=> The harder 
3. The contryside is not as clouded a the city
=> The city
4. Have you got any cheaper wallet
=> Is this the
5. There isn't anyone as gracious as my mother
=> My mother is
6. Your car is more expensive than this one
=> His car is