Dear Betty,
Thank you for your email. It is Sunday today. I needn't go to school. I don't go to the gym to play basketball. Now it's 9:30 in the morning. Where am I now? Do you want to know? I'm on the Great Wall. I'm visiting it with my friend Liu Tao. The Great Wall is beautiful. Liu Tao tells me a lot of interesting stories about the Great Wall. We see some nice things here. Liu Tao also takes many photos on the Great Wall. I like these photos very much. I'll send some of them to you soon by WeChat (微信). When you see the Great Wall in these photos, I'm sure you'll like it. I would like you to come to Beijing to visit the Great Wall one day.
Yours,
Bill