Question 21: Mark letter A, B, C, D on your answer sheet to indicate the word whose underlined part to indicate from the other three in pronunciation in each of the following questions.
A. thoroughly /ˈθʌrəli/ B. astronaut /ˈæstrənɔːt/
C. compete /kəmˈpiːt/ D. atmosphere /ˈætməsfɪə(r)/
[o] in option A is pronounced /ʌ/, the other options [o] is pronounced /ə/.Choose A
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