—Do you think you will fail in the math exam? —. I am not good at it at all.A. I think not

问题补充：

—Do you think you will fail in the math exam?

—. I am not good at it at all.

A. I think not

B. I’m afraid not

C. I’m afraid so

D. I hope so

答案：

A. I think not

B. I’m afraid not

(答案→)C. I’m afraid so

D. I hope so

解析： I think not 我想不是； I’m afraid not恐怕不；I’m afraid so 恐怕如此；I hope so希望如此。句意：你认为你会在数学考试中不及格吗？根据下文，我一点都不擅长数学。可知前文表示对上文的肯定。故选C。