Dear Tim,
Thank you for your last letter and your inviting me.
I'm so sorry that I have no time to go to Haibin Park for hiking this weekend. I was told that my mother had fallen ill ,so I decided to see her this weekend .
It is said that Haibin Park ,a wonderful place,is really attractive.I wonder if you can choose the next weekend ,then we can go there together.
Expecting your answer,and good luck for you .
Yours,
XX(写信人的名字)
亲爱的Tim:
感谢你的来信,也谢谢你的盛情邀请.
但我很抱歉,我这个周末没有办法和你一同去海滨公园郊游.之前,听到我母亲生病的消息,我就已决定周末去看看她.
据说,海滨公园是一个奇特的地方,很吸引人.我就想知道,你能不能选下个周末去呢,这样我们可以一块儿.
期待着你的回信.祝你好运.
你的朋友
XX