Hi, Mr. Wang! Here is good news for you. Your son has been admitted to a university.- ________ How great!

Do you know the man wearing a pair of glasses?——-Yes.He’s a teacher of _________.He teaches _________history.

It is said that ____ young people may lose the abilities to hear after five years if they listen to MP4 players which are too loud for more than five hours a week.

I’ve already told you that I’m going to but it, _____.

Let’s clean the classroom. It’s very ______.