A. defeats

　　B. declines

　　C. delights

　　D. damages

　　17. Our milk powder is especially suitable for children under 6, as it helps a lot to build the body's natural

　　____________.

　　A. degree

　　B. defence

　　C. demand

　　D. depth

　　18. The high wall was built as a __________ against burglars, which discouraged burglars from breaking in.

　　A. division

　　B. delay.

　　C. defence

　　D. decline

　　19. The soldier died in __________ of the country and he died a glorious death.

　　A. defence

　　B. devotion

　　C. duty

　　D. dignity

　　20. Soldiers are called to show bravery in ___________ their country from aggression (入侵). Sometimes during

　　a national disaster such as an earthquake or typhoon soldiers are called to help show bravery and strength.

　　A. directing

　　B. determining

　　C. deserving

　　D. defending

　　CBDAB

　　ADCBD

　　ACBDC

　　ABCAD

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