They have been waiting ......... the bus for half an hour.

Mr. Foster lives_____ 667E 76^th street______ New York.

He may be quick ________understanding, but he is not capable _____ remembering anything.

This must be done_________ any price.

I'm not acquainted (at/in/with/of) those flowers.

Toxic chemicals in the air and land have also driven many species ______ the verge of extinction.

Jane doesn’t spend much money ______ clothes.

What did Mr. Brown die ..........?

She has been living in the country________ the beginning of the summer.

Pay attention _______all traffic signs when you are travelling in the street.

People who are afraid ___ heights are called acrophobes.

It is of great importance to create a good impression _______ your interviewer.

Are you excited ______________ going on holiday next week?

Your request _______ a scholarship has been taken into account.

Many of the stories are based______________ rumor.

Can you send it to me_______________ fax?

Can you help me, please? I can't see the differences .......... these words.

Don't you think you should try to be friendly ... your classmates?

Bread is usually made ...... wheat.

Water consists _____ oxygen and hydrogen.

The children are excited ________ going to the circus.