Choose the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following sentences. 42. Tigers, polar bears and giant pandas are among endangered species and need to be protected. A. saved B. conserved C. guarded D. destroyed 43. Our children and grandchildren might not have a green world to live in if we keep polluting the environment. A. fresh B. clean C. dirty D. friendly 44. My friend is given a smart phone as a present on her 12th birthday A. quick B. modern C. old D. stupid 45. Modern technology has now improved our life in all aspects. A. updated B. advanced C. outdated D. new Choose the underlined part that needs correcting in each sentence below. 46. Unless she doesn't come, I will miss her. A. unless B. doesn't come C. will D. miss [comes] 47. If he finish this work, he can go home late A. If B. finish C. can go D. home [finishes] 48. My close friend is a interesting person A. My B. is C. a D. person [an] 49. How many parts are there in an unit? A. many B. parts C. are D. an [a]