Dear Bob,
My name is ____(填上你自己的名字),I live in China,and I want to be your pen pal.I'm______（填上你的年龄）years old.
I can speak English.I like going to the movies with my friends,too.What kind of movie do you like?
As for the sports,I like playing basketball,badminton and swimming.I hate maths,too.People don't need to calculate those difficult problems in our daily life,right?So sometimes I don't understand why do we have to learn them?
We have a lot in common,hope we can be good pen pals!
Sincerely,
________（填上你的名字）