he world economy growing weaker, for many youngpeople, the dream of landing a good job is becoming harder and harder ________.

The idea of fish being able to produce electricity strong enough to light a lamp is almost unbelievable, _____ several kinds of fish are really able to do this

The blue jeans _______ 50 dollars. And that black pair of jeans _______ 60 dollars.

_______ Anirban Maitra, a professor at Oxford University, Jack’s success would not have been possible.

Have you finished all of the exercises—Yes, ________is left.