Thank you for your help while we were traveling in London. You were so kind and friendly to treat us with good meals, and show us around the city. London is really a very good place to visit, and its beautiful scenery and delicious food gave me a good impression. I had a great time there and learned a lot about London. Mary, are you free these days? I would like to invite you to visit China; I ll show you around the interesting places, such as Beijing and Xi an.
Looking forward to your reply.