Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the followingquestions. 19. The situation seems to be changing |minute by minute| A. again and again B. from time to time C. very rapidly D. time after time. 20. Human beings are constantly |contaminating| natural habitats of the wildlife. A. polluting B. promoting C. destroying D. protecting Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the followingquestions. 21. The situation in the country has remained relatively |stable| for a few months now. A. constant B. objective C. changeable D. ignorant 22. In big cities, animals should be kept |under control|. A. out of dispute B. out of hand C. out of order D. out of discipline