She intended to quit her job to stay ....... home and look  .......... her sick mother.

Please put your stuff away to make room ______ the new computer.

I'm terrified ..... breaking down on a motorway at night.

........... we didn’t like each other very much, but ........... we became good friends.

You must settle the matter .......... yourselves.

We just rested _________ a short time.

I don't think that I'm acquainted .......... him.

Last night I was invited ___ a formal get-together and I enjoyed myself a great deal.

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

Thank you very much _____ what you have done for me.

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

.......... the past, people did a great deal of work by hand.

Clearing forests for timber has resulted ....... the loss of biodiversity.

It was not a problem. We looked____________ his number in the telephone book.

This area is rich _________ oil.

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

Plant and animal extinction leads _________ loss of biodiversity.

Maintaining biodiversity is important _______ us in many ways.

Helen had said goodbye to everybody in the class _____ she left for the hometown.

People who are afraid ___ heights are called acrophobes.

Was your friend successful ___________ getting a loanfrom the bank?