A. an environment friendly way B. an environmental friendly way C. a friendly environment way D. an environmentally friendly wayĐoạn văn21/40Mark the letter A, B, C, or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 18 to 23.an environment friendly way an environmental friendly way a friendly environment way an environmentally friendly wayGiải thíchChọn đáp án D