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--The cars give off a great deal of waste gas in the streets.

--Yes. But I'm sure something will be done to ____ air pollution.

A. reduce B. remove C. collect D. warn

Life is tough in the city. In order to lose their ____, some people drink alcohol.

A. temper B. mood C. consciousness 　D. pressure

Thought it phoned to please the audience, the performance of the famous actor ____ a cold silence.

A. suffered B. suffering C. suffering from D. to suffer from

He ____ a great deal during these years, but he never told others about his ____.

A. suffered; suffer 　　　　　 B. suffered; sufferings　

C. suffered from; suffering　 D. suffered from; sufferings

I ____ the importance of coming early, but you didn't pay special attention to it.

A. stressed                  B. put                         C. carried                    D. switched 

He is ____ great stress because of his new job.

A.in 　　　　　　　　　　　　　　　　 B. under 　　　　　　　　　　　　　 C. on 　　　　　　　　　　　 D. with

  I ____ great stress on a good education.

A. give                        B. send                              C. lay                         D. offer

Mona is never happy.  Listen, she's now ____ her lunch. 

A. taking up                       B. complaining about    C. bringing back          D. switching on

 I walked slowly through the market, where people ____ all kinds of fruits and vegetables. I studied the prices carefully and bought what I needed.

A. sell                         B. were selling             C. had sold                  D. have sold 

--I'm sorry, but I don't quite follow you. Did you say you wanted to return on September 20?

--Sorry, I ____ myself clear. We want to return on October 20.

A. hadn't made　　 B. wouldn't make　　　　 C. don't make　　　　　 D. haven't made