My father has worked in this factory fifteen years.[ ]

Where does John live?—He lives on ______ floor but he doesn’t use a lift to go up and down.

The room _________ as a meeting room.[ ]

Let’s play table tennis_____ Tuesday morning, shall we? [ ]

I went to the Window of the World in Shenzhen. It’s ____ great ______to see a lot of beautiful views in one day.