一What's behind door? I can't open it. 一Let me see.Oh,there's a chair.
I want to visit Dali in the future.
Bob goes to school every day weekends.
He has been to many cities Beijing, Tianjin, Wuhan and Zhengzhou.
Li Ming isn’t good at math. I am not good at math, .
My little brother asked me my MP3 to him.