Unit 5 Happy birthday！
Are you happy?      Are you sad？  No, we aren’t.   Are you angry? No, we aren’t.   Are you tired?  No, we aren’t   Are you happy? Yes, we are.
   We are happy.          Rah. Rah. Rah!!
How are you?
当我们遇到朋友的时候，向朋友打完招呼，然后问好，可以这样问。A:How are you?B:I am fine, thank youand you?A:I am fine too.