题目内容：

Is this book ________ you bought from the bookstore last
Sunday?
A．the one
B．which
C．that
D．/
C为什么不选

优质解答

正确答案是 A.the one.此题考查定语从句.请你把它改为陈述句,结果如下：This book is the one (that) you bought from the bookstore last Sunday.主句 This book is the one 是主系表结构,是主句,the one 是先行词,...