buat cerita menggunakan interested in , keen on , good at , bored with , proud of

i have a lot of frind,one of them is Maryam.she is dilligent student,and nice friend.One day,my teacher asked her to joined mathemathic olympian.As a friend i've known her since she was child,she is hate mathemathic,she bored with it.But,she didn't want to make her teacher disappointed so she accept the offered to join mathemathic olympiad.Everyday she learned mathematic.finnaly,she can got runner up one in mathematic olympian.After that she became interested on math,she good at math even her scoore more high than me,but actually i proud of her so much.

tapi nggak ada keen on nya sih,emang keen on artinya apaan?