30. We were very surprised at his ……….He not only makes toys for himself but also help his sister with some needle work. a. create b. creative c. creation d. creatively 31. The new laws to conserve wildlife in the area will come into force nextmonth. a. protect b. pollute c. destroy d. eliminate 32. Beneficial insects should be…………. to protect our crops. a. conserved b. protected c. destroyed d. trained 33. Water pollution is more and more serious due to the tests of nuclear weapons in the seas and oceans. a. circulation b. environment c. elimination d. contamination 34. We haven’t used this computer for a long time. a. For a long time has not been used this computer. b. This computer has not used for a long time. c. This computer has not been used for a long time. d. This computer has been not used for a long time. 35. He said that he would never sell the ……………collections of stamps that his father gave him. a. valuable b. invaluable c. valueless d. invaluably 36. The roads in the town …… a. wide b. are being widen c. are being widened d. are being wide 37. By cutting down trees we ……….the natural habitat of birds and animals. a. damage b. harm c. hurt d. injure 38. The house is ………..at the corner of a busy street. a. situated b. placed c. stood d. put Choose the underlined part among A, B, C or D that needs correcting: 39. My wedding ring made of yellow and white gold. A B C D 40. Your typewriter has been fixed and you can pick him up any time. A B C D