选择句子补全对话。(共10分)

Sarah:.
Sarah:.
Peter:Thanks.Do you have a computer room?
Sarah:.It’s on the first floor.
Peter:Oh,so many computers..
Sarah:Yes,it is. We have many books.
Peter:?
Sarah:Oh,It’s 4 o’clock.It’s time to go home.
Peter:.
Sarah:Yes,it is.I have an umbrella.Go with me.
Peter:Thanks.