This is ( )bedroom .The twin sisters like it very much.

题目

This is ( )bedroom .The twin sisters like it very much.
A.lucy and Lily's B.Lucy's and Lily's C.Lucy's and Lily D.Luly and Lily.
单项填空.请说明为什么.

答案

因bedroom用的是单数,应是双胞胎姐妹公用的卧室,表示两人共有的东西,只在后面的名词后加“’s”表示所有格.故选A.