明天有空吧?

　　Yes, I do.

　　有啊。

　　How about having lunch with me?

　　一起吃顿中饭怎样?

　　Good idea.

　　好主意。

　　If you're free, how about lunch?

　　有空的话一起吃顿中饭如何?

　　When did you have in mind?

　　你想什么时候呢?

　　I was thinking about Thursday?

　　我看星期四怎样?

　　That will be fine with me.

　　没问题。

　　I'm calling to see if you would like to have lunch tomorrow.

　　我打电话给你，是想知道明天一起吃顿中饭怎样?

　　I'm sorry, but this week isn't very convenient for me.

　　对不起，这个星期我都不方便。