---Who wrote the book?--- .but the book is interesting.
A. I’m not sure.
B. Give me a break.
C. I don't believe it.
D. You know it.
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(答案→)A. I’m not sure.
B. Give me a break.
C. I don't believe it.
D. You know it.
解析：所给的四个选项的意思分别是：I’m not sure.“我不确定。”Give me a break.“让我休息一下”I don't believe it.“我不相信它”You know it.“你知道它。”根据but the book is interesting.可知，本题应该选A。