— Let's have a game of tennis; the loser has to treat the other to a hot dog.— .
Rather than ________ on a crowded bus, he always prefers _________ a bicycle.
The money collected should be made good use ________ the people in Taiwan who suffered a lot in the earthquake.
Watch out! Don’t get too close to the building walls are being painted.
Even though the workers were not satisfied, they _____ to the boss finally.
He was __________ at the __________ waste of food in the school.