Student or Learner
Hello~ Can you help me say this naturally please?
A: You know why Mom was so mad at you at that time?
B: Don't know. I'm still thinking that's not fair.
A: Since you did wrong, you better admit your fault.
B: I didn't do wrong , admit what fault?
A: ⓐDon't so stick to it!
ⓑDon't be so stubborn!