——The book isn’t easy for Jack to understand, is it?
—— . His foreign language is far better than expected.
A. No, it isn’t
B. I’m afraid not
C. I don’t think so
D. Yes, it is
网友回答
A. No, it isn’t
B. I’m afraid not
C. I don’t think so
(答案→)D. Yes, it is
解析：由答句“His foreign language is far better than expected.(他的外语比预料的要好得多。)”可推知，这本书对他来讲很容易。