----- Nội dung dịch tự động từ ảnh ----- Mark the letter to indicate the word(s) CLOSET in meaning to the underlined word(s). 19. Water and fresh air are very necessary for every living thing. A. essential B. difficult C. expensive D. wasteful 20. As tourism is more developed, people worry about the damage to the flora and fauna of the island. A. fruits and vegetables B. plants and animals C. flowers and trees D. mountains and forests Mark the letter to indicate the word(s) OPPOSITE in meaning to the underlined word(s). 21. Their classmates are writing letters of acceptance. A. confirmation B. agreement C. refusal D. admission 22. We offer a speedy and secure service of transferring money in less than 24 hours. A. uninterested B. unsure C. open D. slow