---This Math problem isn’t easy for Jack to work out is it?-. He is far better at Math

问题补充：

---This Math problem isn’t easy for Jack to work out, is it?

---. He is far better at Math problems than we expected.

A. No, it isn’t

B. I’m afraid not

C. Yes, it is

D. I don’t think so

答案：

A. No, it isn’t

B. I’m afraid not

C. Yes, it is

D. I don’t think so

解析：句意：杰克不容易解决这个数学问题，是吗？是的。他比我们期望的更擅长解决数学问题。No, it isn’t不，它不是。 I’m afraid not恐怕不。 Yes, it is是的，它是。I don’t think so我不这样认为。所以选C。