问题描述：
1The series of books about HarryPotter are be coming more and more popular ,and it ___ the best selling series of __ books in history .
A became girl's B has become children's C has became children's D has became boy's E has become boy's
选那个请说理由 我要理由
A became girl's B has become children's C has became children's D has became boy's E has become boy's
选那个请说理由 我要理由
问题解答：
我来补答展开全文阅读