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To find the word whose underlined part is pronounced differently from the others, we'll examine the pronunciation of each word. The underlined parts are "work" in teamwork, "ful" in beautiful, "eam" in dream, and "each" in teacher. Here are the pronunciations of the underlined parts: - work: /wərk/ - ful: /fəl/ - eam: /im/ (in "dream") - each: /iʧ/ (in "teacher") Comparing the pronunciations of the underlined parts, we can see that "eam" in dream (/im/) is pronounced differently from the others. However, we should also consider the "ea" in each of the words. The "ea" in beautiful, dream, and teamwork is pronounced /iː/ or /i/, but the "ea" in teacher is pronounced /iʧ/. So, the word whose underlined part is pronounced differently from the others is actually D. teacher.