---________ I leave all the books here?

---Sorry, you can't. You have to take them back home.

1. A.
   Need
2. B.
   Must
3. C.
   May
4. D.
   Should

--- ______ I leave all the books here?
---Sorry, you can't. You have to take them back home.
A. Need         B. Must        C. May        D. Should