---Look, the light is on. Ms Green must be in her office. ---No, it can’t be Ms Green. I saw her ______ her office just now.A. left B.leaves C. leave
They have been skating __________.
That bag isn’t mine. It may be __________.
In Great Britain it isn’t polite ______ from each other’s plate.
Have you ever ________ the Great wall?
While we _________, we saw a UFO land on a street.