A. enthusiasm B. concentrate C. experience D. certificate

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Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position ofprimary stress in each of the following questions.

enthusiasm

concentrate

experience

certificate

Giải thích

Enthusiasm /ɪnˈθjuː.zi.æz.əm/
Concentrate /ˈkɒn.sən.treɪt/
Experience /ɪkˈspɪə.ri.əns/
Certificate /səˈtɪf.ɪ.kət/
Câu B trọng âm 2, còn lại trọng âm 1
=>Chọn B