改错:These two desks are Lucy andLily`s.

问题描述:

改错:These two desks are Lucy andLily`s.

Lucy and Lily`s就是指两个人共有的,而Lucy's and Lily's就是指每人都有一个 ..
可以根据名词的单复数判断 Lucy and Lily`s desk ,而Lucy's and Lily's就接desks.