29.You’d better give up smoking if you want to keep ________.

　A.health B.healthy

　C.healthily D.healthier

28.Mr Black is an ________in the army，not an________in the government.You can not easily find him in his________.

　A.official；officer；office

　B.officer；office；official

　C.official；official；official

　D.officer；official；office

27.The children live in a village ________.They come here almost every day.

　A.nearby B.near

　C.nearly D.near by

26.We have to learn________technology from other countries.

　A.advance B.advancing

　C.advantage D.advanced

25.What you said sounded________ but in fact it was untrue.

　A.reasonable B.reasonful

　C.reasonless D.unreason

24.The black people were against slavery and fought for their________bravely.

　A.free B.freely

　C.freedom D.frees

23.The child looked at me________.

　A.stranger B.strangely

　C.strange D.strangeless

22.The letter “b” in the word “doubt” is________.

　A.sound B.silent

　C.silence D.sounded

21.There were________fish in the river in South America.

　A.in danger B.danger

　C.dangerous D.dangerless

20.The necklace that she lost is very expensive.It’s of great ________.

　A.valuable B.value

　C.valueless D.unvaluable