The girl was so __________ by the mighty river that she would spend hours sitting on its bank and gazing at the boats and rafts going and coming.
He made up his mind to devote all he could _____ his spoken English before going to college.
We live in a society ______ there is a great deal of debate about competition.
The fact ____ ancient Greek civilization had a great influence on Western culture is known to many people.
---_______ the farmers discovered the entrance to the secret cave in the valley? --- Totally by chance.
__________ he does has nothing to do with me.