A．Because it can create the capital needed to improve our quality of life.B．Because it
A. Because it can create the capital needed to improve our quality of life.
Because it can provide natural resources to industry.
C. Because it can make the quality ot life decrease.
D. Because it can control the world's population.
A．The newcomers don't like the new environment shortly after their arrival.B．The newco
A. The newcomers don't like the new environment shortly after their arrival.
B. The newcomers begin to hate the city, the country in the new culture.
C. The newcomers begin to enjoy their life more but leave the country.
D. The newcomers begin to adjust to their surroundings and enjoy their life.
A．Because cannabis proved to be more harmful than tobacco.B．Because canabis is already
A. Because cannabis proved to be more harmful than tobacco.
Because canabis is already so widespread.
C. Because it is not known whether cannabis may be harmful or not.
D. Because canabis is proved to be positively harmful.
【B20】
A. out
B. down
C. away
D. by
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