选择恰当的句子完成对话。

A. Yes, it is. B. Let me show you around. C. We all like reading. D. Because I like the pictures on the wall. E. Whose books are these?

Ann: Welcome to my new home, Mary.

Mary: Thank you. Wow, it's nice and big.

Ann: Yes, I like it very much. This is the study.

Mary:

Ann: Some books are my parents', and some books are mine.

Mary: Is this your bedroom, Ann?

Ann:

Mary: I like your bedroom.

Ann: Why?

Mary:

Their colours are great!