每個句子中均有一個詞或詞組用斜體字型，請從四個選項中選擇一個與斜體部分意義相近的詞或詞組代替或解釋句中的劃線部分。

　　11. The duty of a soldier is to defend his country.

　　A. resist B assure C guard D contribute

　　12. The revised proposals were debated.

　　A distasteful B rejected C unclear D amended

　　13. As the rubber business declined in south America, Brazil turned to the production of coffee.

　　A was prosperous B failed C was on an incline D was kept back

　　14. If you want to do the job, you must conquer your fear of heights.

　　A oppose B fight C hide D overcome

　　15. That new device can regulate the amount of oil that goes into the truck.

　　A reduce B relate C control D process

　　16. We would much appreciate it if you could do us a favor.

　　A enjoy B be surprised by C be astonished by D be thankful for

　　17. I hope you have left none of your belongings in the hotel.

　　A document. B possessions C children D clothes

　　18. New duties were imposed on wines and spirits.

　　A removed B cut C charged D checked

　　19. The readers always ask what the author's basic motives are.

　　A talents B intentions C themes D symbols.

　　20. Computers will flourish because they enable us to accomplish tasks that could never before have been undertaken.

　　A implement B render C complete D assign

　　11.C 12.D 13.C 14.D 15.C 16.D 17.B 18.C 19.B 20.C