Question

----- 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

Answer 1

D

解析:

I guess not. 我认为他们没做好工作。为了避免重复，用not替代are not doing a good job at all。