Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

worry /ˈwʌri/ hoặc /ˈwɜːri/ phát âm /ʌ/ hoặc /ɜː/ KHÁC forward /ˈfɔːwəd/, borrow /ˈbɒrəʊ/ hoặc /ˈbɔːrəʊ/, software /ˈsɒftweə(r)/ hoặc /ˈsɔːftwer/ phát âm /ɔː/. Chọn D