When he turned professional at the age of 11, Mike _________to become a world champion by his coach and parents. [ ]

More than 200 dead pigs inthe waterways have raised urgent concern.

I would rather to stay at home listening to music rather than ______ out on such a cold day

With economy getting worse，we have reached the point________we have to cut down our daily expenses.

How did you find him out? — I ______ his name by chance on the list. [ ]