----- Nội dung dịch tự động từ ảnh ----- V. Decide which of underlined part is not acceptable in standard English by circling the letter A, B, C, or D. 56. We all are slowly destroying the earth. The seas and rivers are too dirty to A B C 57. swim in. There is so much smoke in the air that it is healthy to live in many с 58. of the world cities. In one well-known city, for example, poisonous gases of A C D 59. cars pollute the air so much that traffic policemen have to wear oxygen mask. A B C 60. We have cut down so many trees that there now are vast areas of wasteland A B 61. all over the world. As a result farmers in parts in Africa cannot grow enough B C A A B D B D C D D D
