Now the air in Yancheng is _______ than it used to be . Something must be done to stop it .
The old book there ______ some strange pictures in it. Nobody can understand them.
--- Did you go to Jack’s party last night? ---- No, I ______.
Have you seen a tall boy ______ a basketball ______into the building?
Your friend John has a lovely pet dog called” Bob”,_______?
There's _________800-metre-long road behind _________ hospital.