50đ giúp mk hết nha đúng nhất nha V. Read the text and choose the correct answer A, B, c or D for each of the gaps. Earthwatch Have you ever wanted to do something different? Five years ago, Will Slade read about (26) _______ organization called Earth watch. Earthwatch finds volunteers (27) _______expeditions(28) _______and explore different parts of the world. Will decided(29) _______an expedition to study elephants in Africa. “I wasn’t sure about it before I went,” say Will. “But in fact, I really enjoyed every minute of the expedition. We slept (30) _______tents and we cooked our own food, but it was the great (31) _______elephants and all the other animals there”. “I’ve (32) _______all the expeditions, and I have seen some fantastic places. How (33) _______people have slept (34) _______a beach, climbed a mountain, or see a whale? This world is such a beautiful place, but it’s disappearing fast. We have to learn more (35) _______it if we are going to save it” 26. A. a B. the C. an D. some 27. A. to B. for C. at D. on 28. A. studying B. studied C. study D. to study 29. A. to join B. join C. joining D. joined 30.A. on B. in C. at D. under 31. A. see B. saw C. seeing D. to see 32. A. enjoyed B. enjoy C. enjoying D. to enjoy 33. A. much B. far C. many D. long 34. A. in B. on C. to D. above 35. A. at B. in C. of D. about