with College Entrance Exam slogans, the walls of the classroom look better．
A．Having decorated B．Being decorated C．To be decorated D．Decorated
You should study the details of the policy before you sign it.
A．in return B．in advance C．at ease D．on purpose
If we keep wasting so much energy, ________are that our oil wells will dry up and the environment will be destroyed.
A. problems B. difficulties C. questions D. chances
You may imagine what great difficulty I had ________ complicated ideas in simple English.
A．expressing B．to express C．expressed D．express
The incomes of skilled workers went up. ________，unskilled workers saw their earnings fall.
A. Moreover B. Therefore C. Meanwhile D. Otherwise
The further falling of the stock market as reported today has ________ a fresh wave of selling.
A．given off B．set off C．put off D．got off
