Have you been to Beijing before?
你以前来过北京吗？
A: David, have you been to Beijing before?
A: 大卫，你以前来过北京吗？
B: Yes, I have. Many times.
B: 是的，来过。来过很多次。
A: Really? You must know it quite well.
A: 是吗？你一定非常了解北京。
B: Well, I think this is my sixth visit. I get to know it a little bit more each time.
B: 哦，我想这是第六次来北京了。我一次比一次更了解它。
A: Six times! That’s a lot. It’s nearly your home city!
A: 六次！不少啊。差不多成了你的家乡了！