假若你是张华，今年12月20—22号曾在Goodland酒店住过。酒店虽然环境不错，但一些设施和服务却让你不是太满意。请用英语给酒店经理Brown先生写封80—120词左右的投诉信。(1)要点提示：①首先对酒店招待表示大体的满意。②提出这次居住过程中不满意的地方，如床单不太干净、房间内无线网不是很通畅、洗澡热水不热等。③期待酒店给予回复和解释。(2)语言流畅，书写规范，卷面整洁。信的开头已给，不计入总数。
Dear Mr. Brown,
How do you do? I am Zhang Hua, one of your guests in Goodland Hotel on Dec. 20-22 this year.___________________.
Dear Mr. Brown,
How do you do? I am Zhang Hua, one of your guests in Goodland Hotel on Dec. 20-22 this year. On the whole, I was satisfied with your service. However, here I am writing to complain about a few things that were not quite pleasing in your hotel.
First of all, the sheet of your hotel was not very clean, with some stains. Secondly, the connection of wireless network in the room where I stayed was so not good that I couldn't watch the football game on the Internet smoothly. Finally, and most importantly, the water was not hot enough when I took a bath, which is against your promise to provide hot water 24 hours a day.
I hope you can give an explanation for the situation I've encountered and I am looking forward to your early reply.
Yours,
Zhang Hua