求一篇英语请假条,英语作业.大概内容就是：因为我妈妈生病了,要回家照顾她,请假一个星期.别太长了,100个单词以内.

April 20,2010
Dear Ms.Jiang,
I am terribly sorry that I shall be unable to attend this morning two periods of English Class （I‘m terribly sorry to apply for ten days’ leave from the Aug.23rd to Sep.3rd）due to a bad cold and high fever.I will show you the certificate from the doctor to support my application.I will go back to school as soon as I recover.（I promise I will do my best to catch the missed lessons on after I come back.）Wish for your allowance.
Yours respectfully,
Amelia