---Jack, _______ have you been away from your hometown?

---Since the end of last February.

 A. how long            B. how soon         C. how far          D. how often

---Jack, _______ have you been away from your hometown?

---Since the end of last February.

1. A.
   how long
2. B.
   how soon
3. C.
   how far
4. D.
   how often

---Jack, _______ have you been away from your hometown?
---Since the end of last February.