Tepees are characteristic ______ the Indian tribes of the Great Plants.

I prefer coffee______ tea.

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

It was very kind_________ you to give up so much of time to help me.

They like to sit .......... the fire.

When you pick _________a book for the first time, check that it is not too difficult.

Look at the leaves ............. that tree. They’re ........... a beautiful colour.

How would the body react__________ the extreme changes in temperature?

I always come _____ school _____ foot.

Plant and animal extinction leads _________ loss of biodiversity.

Today, women are increasingly involved ....... the politics.

No one knew precisely what would happen _____________ a human being in space.

A sign warned motorists ______ dangers.

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

If you don’t want to watch TV. Turn it______________, please.

He is looking .......... his glasses.

Will this office be adequate ____ your company's need?

We are proud (at /in/on/of) our people's heroic tradition.

I posted the letter today, so they should receive it .............Monday.

The accident was my fault, so I had to pay for the damage ........... the other car.

He was happy because his poems had been translated ________several languages.