Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.
A.biomass
B.geothermal
C.perseverance
D.Generosity
* Đáp án
* Hướng dẫn giải
A. /ˈbaɪəʊmæs/ B. /ˌdʒiːəʊˈθɜːml/ C./ˌpɜːsəˈvɪərəns/ D./ˌdʒenəˈrɒsəti/