✔ 最佳答案
I think it would be better:
I like playing badminton.It is because playing badminton is fun and interesting.I can build up a better relationship with my classmates and friends too.Also,playing badminton(or you may use "it") is good for my health.
2007-07-11 18:09:24 補充:
sorry,is:(or you may use 'it' )