假如你叫李华，是一名正在英国学习的交换生，有事外出要给室友JACK留一张便条。英语作文110个词最少

Dear Jack
One of my friend gets ill.I'll send him to the hospital ,so I can't take part in the weekend party, so don't wait for me and hope all of you have a good time. I will come back at 6pm
tomorrow evening.please tell the class adviser about this and show my opology.
Yours
Lihua

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