Fill in a suitable preposition

. Fill in a suitable preposition.
1. John is keen ______________ watching cartoons.
A. on B. in C. at D. off
2. I am not mad ______________ walking alone.
A. in B. at C. about D. with
3. Our kids are interested ___________ playing with pets when they have free time.
A. on B. in C. of D. about
4. My son was crazy ______________ football when he was young.
A. about B. of C. at D. with
5. Peter is a big fan ______________ reading science fiction.
A. in B. about C. of D. with
6. My aunt is bad ______________ cooking, so she usually eats out.
A. on B. by C. about D. at
7. We are really hooked ______________ playing computer games.
A. on B. at C. in D. from
8. I am obsessed ______________ painting and drawing.
A. of B. with C. on D. about
Julia is terrible ______________ getting up early to go to work in the morning.
A. of B. about C. at D. on
10. Jenifer is addicted ______________ doing DIY.A. with B. of C. about D. to