_____ you are in a speech contest or you are giving a talk in class, a little preparation will make your presentation organized and dynamic.
Suspecting the traveler of carrying drugs, the Customs official stopped him and ______ suitcase, but found nothing at all.
The old professor told us that every part of the materials should be made use of _____ the station.
Safety in school has been of great concern because of frequent reports about accidents _______ students got injured or killed while in school .
----- Have you seen your nephew lately? ------ Yes, in fact, I saw him yesterday.I ______ him for three years.
Bob Geldof, who organized Live Aid, ______ to raise money for the famine and it ______ to be a great success.