Sentence 48: Mark the letter A, B, C, or D on your answer sheet to indicate the word that followsprimary from the other three in the position of the questions stress in each of the questions:
valuable /ˈvæljuəbl/ variety /vəˈraɪəti/
environment /ɪnˈvaɪrənmənt/ impossible /ɪmˈpɒsəbl/
The stress of sentence A falls on the first syllable, the rest on the second.
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