________ fire, all exits must be kept clear.
.--- Who would you like ______ to the ball with? ---Of course Mary. We’ll start at 6:30 and try to get there before 7:00.
--How long are you staying ? -- I don't know .______.
The Olympic Games are held _____.
This area experienced ____ heaviest rainfall in ____ month of May.
We offered these students a summer course ,aimed _____ improving their spoken English.