Bob is a football fan. He often asks me _______ football matches with him.
-Before I enter the competition, I want to know the __________. -The winner can get a gold medal.
Many people are thinking of new ways to fight the pollution of the __________.
Mr. Brown had got a __________ and he went to see a dentist.
They didn't provide __________ for Mr. Brown, so he had to find a hotel to live in.
Some accidents have happened on the road recently. So we should pay attention to the __________ problems.