----- The boys are not doing a good job at all, are they? ----_____ .

      A. I guess not so    B. I don’t guess     C. I don’t guess so    D. I guess not

— The boys are not doing a good job at all, are they?

— _______ .

A. I guess not so　 B. I don't guess　 C. I don't guess so　 D. I guess not

---The boys are not doing a good job at all, are they?

---________.

1. A.
   I guess not so
2. B.
   I don't guess
3. C.
   I don't guess so
4. D.
   I guess not

. –---The boys are not doing a good job at all, are they?

   ----__________.

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

C. I don’t guess so                       D. I guess not