The air in Dongying is much worse than that in many other cities. We must do to protect our environment.

I will tell him the news as soon as he ____ back.

I’m hungry. __________ my lunch here,please.

Have you ever heard the song called “When I am old!”–_________.I am going to listen to it sometime next Sunday.

a volunteer isgreat.—I think so. Some of us wantvolunteersfor the London Olympics.