4.A. baggy B. locate C. prepare D. deny 5.A. pollution B. benefit C. government D. photograph 6.A. minority B. traditional C. fashionable D. convenient 7. A.primary B.religion C.divide D.Comprise 8. A . pesticide B.energy C. occasion D.evidence 9.A. pesticide. B. pollution. C. electric. D. consumer. 10.A. invite B. wander C.design D.remind 11.A.natural B.disaster C. volcano D. experience 12.A. combine B. believe C. interest D.enjoy 13.A. confidence B. musician C. edition D. occasion 14.A. banyan B.paddy C.bamboo D. entrance 15.A. optional B. primary C. religion D. separate 16.A. teenager B. behave C. express D. explore 17.A. suggest. B. abrupt C. occur D. damage . 18.A. industrial B. innovation C. communicate D. occasional 19.A. convention B. medical C. majority D. humanity 20. A. congratulate B. priority C. nominate D. important 21.A. erupt B. gather C. collapse D. occur 22.A. eternal B. confident C. dangerous D. healthier 23.A. abroad B. divide C. enjoy D. worship 24.A. mountain B. hamburger C. countryside D. Vietnamese 25.A. priority B. category C. dormitory D. ordinary 26. A. community B . dormitory C. minority D. biology 27.A. television B. introduction C. presentation D. exhibition 28.A. occasion B. embroider C. designer D. casual 29.A. important B. mystery C. tomorrow D. however 30. A. candidate B .edition C. enjoyable D. enormous 31.A. deposit B. advertise C. candidate D. institute 32. A. education B. electricity C. laboratory D. mathematics 33. A. enjoyable B. popularity C. engineer D. population 34.A. disappointed B. deforestation C. complication D. electricity 35.A. correspond B. atmosphere C. dormitory D. hamburger 36. A. pollution B. opinion C. collection D. conversation 37.A. interesting B. surprising C. amusing D. successful 38.A. communicate B. convenient C .compulsory D. correspond 39.A. opinion B. relative C. invention D. discussion 40.A. important B. advertise C. newspaper D. different