It is necessary that the government solutions for the problems of air pollution to create a clear environment.
| A．should have found | B．could have found |
| C．could find | D．should find |
I'm afraid this painting is not by Picasso. It's only a copy and so it's _____.
| A．priceless | B．invaluable | C．unworthy | D．worthless |
On seeing Jay Chow appear on the stage, the audience _____ cheering.
| A．burst on | B．burst into | C．burst in | D．burst out |
Though _____ in San Francisco, Dave Mitchell had always preferred
to record the plain facts of small-town life.
| A．raised | B．grown | C．developed | D．cultivated |
Mary rushed home_______ she heard the news, only______ that her husband was gone.
| A．as soon as; finding | B．immediately; to find | C．the moment; find | D．when; found |
Some teenagers have a generalized resentment against society, which _____ them the rights and privileges of adults, although physically they are mature.
| A．deprives | B．restricts | C．rejects | D．denies |