Most types of dolphins live at less twenty-five years, and some species may reach 50 years of age

You should know by now that I cannot stand it when my steak is not cooked properly as I always have mine well-made 

You need to get some job retraining. _______ it, you risk being laid off.

After the police had tried unsuccessfully to determine to who the car belonged, they towed it into the station.

Blindfish, which spend their whole lives in caves, have _______ eyes nor body pigments.

Van Cliburn he studied the piano from 1951 to 1954 and won multiple awards between 1958 and 1960

I prefer living in a nuclear family than a joint one.

I went to buy a Rolling Stones CD ________ the shop didn't have it.

If we come home on time, our step-mother will be angry.

The artist tried stimulate interest in painting by taking his students to the museums.

The flight was canceled_______ the weather conditions were bad.

It was Vitus Bering, the Danish sea captain, who discovered Alaska on its voyage to Russia in 1741.

Some of us have to study their lessons more carefully if we expect to pass this examination

Thanks to his obstinacy, he achieved what he wanted. If he were discouraged earlier by this failures, he would not have reached his aims.

I had a few problems, but Rob gave me some good advices

It sounds like something wrong with the car's engine_______, we'd better take it to the garage immediately.

Mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase: 
Faraday, the son of a poor blacksmith, was born in London in 1791 and had no  _________beyond reading and writing.

Wealthy people have always desired and wear precious stones because their beauty is lasting.

I think that when you meet the person that you want spend the rest of your life with, you change.

Either Mr. Anderson or  Ms Wiggins are going to teach our class today.

For many years, scientists studying the effects that the sun has on human skin.