Dear Bob, I'm so glad to receive your letter. I'm glad to know that you want to learn Chinese. I'm writing to tell you something about it. Learning a new language can be difficult at first. But I'm sure you can stick to it along with learning it well. If you want to learn Chinese, I suggest you learn about Chinese culture and history first. This will make you more and more interested in learning Chinese, however you won't give up halfway. You can travel to China often and learn more about it. I truly hope that you can come to China and I'm looking forward to your arrival. If you have any questions about the Chinese, please feel free to contact me for further information.Yours sincerely, LiHua