I’ll be at home ........... Friday morning. You can phone me then.

A sign warned motorists ______ dangers.

We are her to provide you _____ the best service possible.

Are you getting __________well at college?

She was very surprised________ the grade she received.

My father insisted (in/on/of/at) building a new house.

I prefer coffee______ tea.

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

John missed a lot of lessons. He was ill _____ January to March.

The river Rhine flows _____ the North sea.

He’s getting bored_____________ learning_____________ heart.

William is .......... meanness.

You should make use___________ the books you have.

He was put .......... prison.

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

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

He walked .......... the room .......... which we were sitting.

My little son was interested ............... fixing broken objects and making new things.

According ..... Bill, there's something wrong  ........ my computer.

She’s never satisfied ____________ what she has got.

Endangered species are plant and animal species which are ________ danger of extinction.