Dear Wang Hui，
I'm in the US with my mother now. I will tell you something about my trip.
It's interesting to visit another country. But sometimes there are problems(问题)when we don't know the language very well. It's hard to talk with people here. We don't know how to use the telephone. We don't know what to order in a restaurant. It's not easy to decide how much to tip(给小费) waiters. ____it is exciting to have an experience(经历) like that. In a short time，we learn what to say and what to do. We take many photos. I will buy a beautiful hat for you. We are having a lot of fun in the US now. Please write to me soon.
Yours，
Li Ming
