6. ----Are you sure it’s going to snow this weekend?    ----_____.

A. I don’t think                    B. I think not so

C. I don’t think about it D. I don’t think so

---Are you sure it’s going to snow this weekend?   

---_____

1. A.
   I don’t think
2. B.
   I think not so
3. C.
   I don’t think about it
4. D.
   I don’t think so