A. travel B. suggest C. sustain D. involveĐoạn văn3/50Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions. travelsuggest sustaininvolveGiải thíchĐáp án A A. travel /'trævl/ B. suggest /sǝ'dʒest/ C. sustain /sǝ'steɪn/ D. involve /m'vɒlv/