—Where is my bag? I can’t find it.—Don’t worry. It must be in your room.
---What are the police doing there? ---They are _______ the building. A robber ran into it just now.
_______ enjoyable music programme on Channel 3!
---Excuse me, could you tell me the way to the Museum? --- Sorry, I’m a stranger here. ---_______.
---_______ does this book belong to? --- It _______be Li Lei’s. There’s his name on it.
--- Mum, could I play with my classmates for a while after I finish my homework? --- _______. But you must come back before supper.