The Greens walked ________ the door just now.
Children _______ sit in the front seat of a car. It’s too dangerous.
In Chongqing, you can often see many people dance outside together if it ______ in the evening.
Mr. Green’s office is _______ the 26th floor. You can take the lift there.
—Could I --- your bike? Mine is broken.
—Where is your father?--He ________ the World Cup in the living room.