In many cities of China, if an ambulance is_______ in a traffic jam, police will respond to the emergency.
The opening day of Expo 2010 Shanghai China we have been forward looking to_____ to arrive.
_________the peace talk between the two countries will break down depends on your attitude.
It was __________ you had done ________made it possible for you to improve your English.
—May I use your computer?—Sure, _____________
— What’s the matter? — The shoes don’t fit properly. They _____ my feet.