Going by train isn’t __________ convenient as going by car. A. so B. as C. more D. A & B are correct.Đoạn văn58/100III. Choose the word or phrase (A, B, C, or D) that best completes the sentence.Going by train isn’t __________ convenient as going by car. so as more A & B are correct.Giải thíchĐáp án đúng là D