Everybody was surprised ..... the news.

Are you acquainted ___________ this man?

The government is trying to make the country safe _____ terrorist attacks.

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

The river divides the city .............. two parts.

His opinion is different _____________ mine.

What do you think .......... this sonata of Beethoven?

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

It was a confusing situation. Many things were happening ......... the same time.

Bluegrass music is some what different ______ other types of country music.

Mr. Green is responsible ___________ hiring employees.

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

This apartment would be too crowded for two people, but it is perfect ___ one.

You get bored ___________ doing the same thing every day.

The train service is very good. The trains are nearly always .............. time.

He stayed home .......... the rain.

You don't like it, do you? ... the contrary, I love it.

We congratulate you ___________ your successful flight.

He is negligent .......... his duties.

Water is essential _____ all life.

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