Soccer is the most truly international team sport, but there’s still some question _______whether it should be called a game or open warfare.
—I failed again. I wish I _________ harder.—But you _________.
Drunk driving used to occur _______, but now it is under control.
It gives his life a flying start ______ he has gone abroad for further education.
The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.
What is the best way you can imagine ______the overuse of water in our school?