If you don’t work _______ enough, I don’tthink your dream will come_______.

It is becoming more and more difficultto_______the problems of traffic in some big cities of our country.

The man over there _____me of my math teacher who I like very much.

I failed in the final examination last term and only then _____ the importance of studies.

The way he did it was different ____ we were used to.