高一短文改错求助Dear Grandpa Thank you for your letter. My school is

高一短文改错求助
Dear Grandpa
Thank you for your letter.
My school is organizing a basketball team and
there's just a chance which I can join it.I'm little of 76.
course,but terribly quick and bravely.While the others 77.
are jumping about in the air,I can run under my legs 78.
and get the ball.It will be lot of fun for practicing out 79.
in the playground in the afternoon with the tree 80.
around us all red and yellow and everybody laughing 81.
and shouting.These are the happier girls I've ever 82.
seen and I'm the happiest in all! 83.
I meant to write long letter and tell you all the 84.
things I'm doing at school,but the bell was ringing, 85.
so I just have to stop here