Scientists are trying to ______ the ways to reduce pollution from aircrafts.

I wish you would ______ the TV and go outside and get some exercise.

All types of dinosaurs ______ long time ago.

Understanding the need for change is essential for the ability to successfully ______ these challenges.

Steve Kootenay-Jobin, aboriginal housing coordinator at Mount Royal University, notes that many indigenous students who move to the city for education, ______ culture shock.

Sorry, I'm late, but my car ______ on the way here, and I had to call the garage.

The teacher asked a difficult question, but finally Ted _______ a good answer.

It's very cold in here. Do you mind if I _________ the heating?

Many problems have _________ since the beginning of the school year.

Part of the path had been ________ by the sea.

Because of heavy rain, the game was ______ for a few days.

At the station, we often see the sigh "______. for pickpockets".

UNESCO ______ United Nations Educational, Scientific and Cultural Organization.

Don't forget to ______ your gloves ______. It is cold outside.

The passengers had to wait because the plane ______ one hour late.

It was the third time in six months that the bank had been _____ .

I always _____ of money before the end of the month.

It's taking me longer to _____ the operation than I thought.

I've just spent two weeks _____an aunt of mine who's been ill.

I've always _____ well with old people.

It's very cold in here. Do you mind if I ______ the heating?

They've _____ a new tower where that old building used to be.

Stephen always wanted to be an actor when he ______.

The bus only stops here to ______ passengers.

If anything urgent _____, you can contact me at this number.

Your daughter's just started work, hasn't she? How's she _____?

We had to ______ their invitation to lunch as we had a previous engagement.

If you want to join this club, you must______ this application form.

They were 30 minutes late because their car ______.

The racing car ______ after it crashed into the fence.

Our car ______ at the side of the highway in the snowstorm.

Mike ______ Alaska, so he's used to cold weather.

Jane had a difficult childhood. She ______ a broken home.

The woman ______ when the police told her that her son had died.

Somebody ______ last night and stole our stereo.

The firemen had to ______ the room to rescue the children.

The bomb______ when he rang the bell.

No one really believed it when the news came through that the "Titanic" had ______ on her maiden voyage.

He ______ about his new car all the time.