You should concentrate _________what the interviewer is saying and make a real effort to answer all the questions the interviewer asks.

Mrs. Brown is often worried ___________ money.

Are you aware ________the time?

I’m surprised .......... the amount of traffic today. I didn’t think it would be so busy.

A beautiful clock was given _________ her by a handsome boy.

Gas is made .......... coal.

It is important to have someone that you can confide ________.

Teachers are responsible (at/for/to/of) their teaching.

Helen takes____________ her mother in many ways.

The god jumped .......... the table.

Our flat is ......... the second floor of the building.

We are grateful (at/in/on/to) our teacher.

The dog ran .......... the house.

My cat is very fond _____ fish.

You should pay more attention __________ what your teacher explains.

I prefer this chair .............. the other one. It’s more comfortable.

.............. of the concert, there was great applause.

John has gone away. He’ll be back ......... a week.

There are many others .......... me who disagree on what you say.

Our study is very important____________ our future and useful_____________ our country.

We were very grateful _________ our friends for all of their assistance.