Four-fifths of the world's computers use programs (at/in/on/about) English.

......... the most part, his explanations are quite easy to understand.

This summer, he will be eligible _______ a three week vacation.

He is a man .......... action.

Here’s a shopping list. Don’t buy anything that’s not ............. the list.

It looks better .......... a distance.

I was delighted _____________ the present you gave me.

Have you read any books .......... Agatha Christie?

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

We have been learning English_____________ five years.

We just rested _________ a short time.

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

Don't shout ___________ the child when he makes a mistake.

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

He turned his back .......... her.

He succeeded ________ getting a scholarship.

She'll come home ______ April.

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

Mary married a wealthy man. She got married .......... him last June.

When are you leaving __________ Singapore? This week or next week?

We could not play soccer due __________ the bad weather.