He didn’t even have the intelligence to call _________ an ambulance.

A beautiful clock was given _________ her by a handsome boy.

I work hard .......... help my family.

We are present (at/in/to/of) the lecture yesterday.

Oxygen, fuel, and hear are all necessary _____ combustion.

We have been learning English_____________ five years.

Someone left a box in the garden and I fell .......... it in the dark.

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

They cancelled the flight because _________________ the storm.

The Americanpeople shared ___________ the Soviet people their satisfaction for the safe flight.

Your request _______ a scholarship has been taken into account.

Clean air is necessary ........... our health.

Did you go on holiday ... yourself?

Our study is very important____________ our future and useful_____________ our country.

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

I always come _____ school _____ foot.

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

The medical center is close ________ campus.

What did that man die ________? –A heart attack.

They prevented me______ entering the house.

The problem is becoming serious. We have to discuss ............ it.