Mark the letter A, B, C or D to indicate A. unhealthy B. vitamin
15/15
Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in the position of primary stress in each of the following questions.
unhealthy
vitamin
mineral
natural
Giải thích
Đáp án:A
Giải thích:Đáp án B, C, D trọng âm 1. Đáp án A trọng âm 2.