Dear David,
I‘m writing to make an apology that I can’t join in your schoo‘s program this summer holliday. Here is the reason that I can’t go there.
Yesterday, I was said to a news that we should take part in the school‘s activity of teaching in the villiage. I can’t absent because this activity is important of my school. This is my work. I sincerely hope that you can understand my situation and accept my apologyl. Therefore, in order to express my apology, I invite you to visit my hometown.
Words can hardly express how sorry I am that I can‘t join in your school’s program. If convenience, I sincerely hope that you can accept my invitation. Looking forward to your early reply.
Yours,
Li hua
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