I really must be going now,because I have classes in the early morning.怎么回答

I really must be going now,because I have classes in the early morning.怎么回答
I really must be going now,because I have classes in the early morning.怎么回答

I really must be going now,because I have classes in the early morning.怎么回答
That's all right.Drop by if you have time.
(drop by:顺便来访)

All right,see you