问题补充：
-- Do you know?
--- Next Friday.
Awhen did the book come out
B. when the book came out
Cwhen will the book come out
D. when the book will come out
答案：
A. when did the book come out
B. when the book came out
C. when will the book come out
(答案→)D. when the book will come out
解析：句意：你知道这本书什么时候出版吗？下周五。从句子的意思来看，句中强调的是下周五发生的动作，所以句子用一般将来时态，同时宾语从句中句子必须用陈述句的语序，故选D
