couple secure across attack3/50Mark 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 questionscouplesecureacrossattackGiải thíchĐáp án A couple /ˈkʌpəl/ secure /sɪˈkjʊr/ across /əˈkrɔs/ attack /əˈtæk