麻烦一下大神!帮忙写一张英语请假条一下!如题!

Jun 10
dear Mrs lucy :
I'm sorry I can’t go to school today.I helped the farmers pick apples with my classmates on the farm yesterday.Unluckily,I fell off the ladder and hurt my leg,but I wasn''''t badly hurt.The doctor asked me to stay in bed and have a good rest.So I ask for leave for two days.
your student
Tom
【这请假条要不要写请假的原因啊?这里写了原因,】