脖子扭伤 how to write a note to my P.E teacher

To Mr/Ms 老师名字:

I had sprained my ankle yesterday when I was playing basketball.

一下就是说你不能上P.E.了.

I will be unable to participate in any physical activities in class. Please grant me the permission to sit out on today's class or following classes if necessary. Thank you.

Dear teacher:
My neck was badly sprained when I played basketball yesterday.The doctor said I should have a good rest,so I couldn't take part in any physical exercises. Enclosed with my case history.
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