This summer holiday,I learnt to ride a bike.Because when I am going to the middle school,I must go to school by bike.My father bought a new bike for me.In the weekends,he taught me how to ride it.At first,I was nervous.I always felt that I would fall down from my bike.My father encouraged me to be brave.And he would help me and protect me.Then I was not so worried.I could ride it slowly.After two weekends,I learnt it.I could ride it by myself.I was so excited.My father was proud of me,too.