问题补充：
He never wrote his first one again.
A. as good book as
B. such good a book as
C. so good a book as
D. such good book as
答案：
A. as good book as
B. such good a book as
(答案→)C. so good a book as
D. such good book as
解析：考查比较等级结构“as/so＋adj.＋a(n)＋单数可数名词＋as”的用法。在此比较等级结构中，形容词应放在so/as的后面，故答案为C。
