David, where did you get so many old books?
Some graduates were selling their used books. They were really cheap, so I bought some.
But aren't you leaving China in 2 weeks? How can you finish reading so many books?
I'll take them back to America. I'll continue to improve my Chinese, so they'll be very helpful.
When will you come to China again?
I don't know, maybe several years later or maybe next year, that all depends.
Depends on what?
It depends on whether my mom recover or not. If she is still ill. I cannot leave her to work in China.