It ________be the postman at the door.It's only six o'clock.
The reason ________ he was late for the meeting was _______ his car had broken down on the road.
This is just the place ________ I am longing to visit these years.
Taxi _________ have stayed fixed for more than five years.
_______ break the law should be punished.
My mother ________ me not to go to Athens to watch the 2004 Olympic Games, but she failed.