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To determine which word has an underlined part that differs in pronunciation from the others, we'll analyze the pronunciation of each word. **Question 1: A. suffered B. balanced C. examined D. received** The underlined parts are the suffixes "-ed". Let's look at their pronunciations: * suffered: ˈsəfərd (the "-ed" is pronounced as /ərd/) * balanced: ˈbælənst (the "-ed" is pronounced as /ənst/) * examined: ɪgˈzæmənd (the "-ed" is pronounced as /ənd/) * received: rɪˈsivd (the "-ed" is pronounced as /ivd/) The pronunciation of the "-ed" suffix differs in each word, but the one that stands out as different is "received", as it's the only one with a distinct vowel sound (/i/) in the suffix. **Answer:** D. received **Question 2: A. examine B. bacteria C. replace D. vaccine** There's no underlined part specified, so we'll assume the question is about the pronunciation of the words as a whole. Let's look at their pronunciations: * examine: ɪgˈzæmɪn * bacteria: bækˈtɪriə * replace: ərˈpleɪs * vaccine: vækˈsin The word that stands out as different is "examine", as it's the only one with a distinct /ɪg/ sound and a stress pattern that includes a prefix. **Answer:** A. examine Analyze: 'disease' stressed at second syllable 'nutrient' stressed at first syllable 'treatment' stressed at first syllable 'diet' stressed at first syllable The three words 'nutrient', 'treatment', and 'diet' have the primary stress at the first syllable while 'disease' is stressed at the second syllable. Answer: A. disease Analyze: 'energy' stressed at first syllable 'fitness' stressed at first syllable 'organism' stressed at first syllable 'ingredient' stressed at second syllable The three words 'energy', 'fitness', and 'organism' have the primary stress at the first syllable while 'ingredient' is stressed at the second syllable. Answer: D. ingredient Here are the correct answers to each question: 5. C. went 6. C. expectancy 7. D. stay up 8. C. virus 9. A. balanced 10. A. were 11. C. has eaten/has forced 12. D. work out 13. A. repeated (Note: The correct answer is not among the options. However, "repeat" is the closest correct answer.) 14. B. have been 15. A. from 16. C. have opposed 17. B. cut down 18. C. take 19. D. beneficial Question 20: Answer: B. Thanks for your help. Question 21: Answer: C. That's very kind of you. Question 22: B. Sufficient Question 23: C. detrimental Question 24: A. unimportant Question 25: D. insufficient Question 26: The correct answer is B. regular. It should be "regularly" (an adverb) instead of "regular" (an adjective). Question 27: The correct answer is not among the given options, but the underlined part that needs correction is "a balanced diet last week". It should be "a balanced diet for the last week" or "a balanced diet last week and it has improved" should be "a balanced diet last week and my energy level has improved".