Lucy and Lily's father don't have a black hat改错

问题描述:

Lucy and Lily's father don't have a black hat改错
1小时之内!
写下理由

Lucy and Lily'表示他们两的的爸爸是一个,所以后面用doesn't
如果是Lucy's and Lily's表示两个人的爸爸,后面用don't