Question

---Hello,______
---It must be about two years since we last met. What have you been doing with yourself?
--- I've been doing all sorts of things

1. A.
   I haven't seen you for ages
2. B.
   how long have you been like this?
3. C.
   where have you been these years?
4. D.
   nice to see you again

Answer 1

A
交际用语，表“好久不见”