When my parents said no i persuade them that if i don't keep it as a pet it would become alone and die without anyone .So please let me keep it 

4 4 4
My parents would obviously say 'no' to keep a pet specially if its stray. But if I want to convince my parents to let me keep that animal whether its a dog or a cat I will show them that I can take care of it and that I will be responsible. Keeping a pet is really hard and a responsible thing so, before  parents let their kids keep a pet they would obviously see whether their child can handle it or not.  
5 3 5