làm và giải thíc giúp mình vối

I can help you with that. To find the word whose pronunciation of "u" differs from the other three, we need to analyze the IPA notation of each word. 1. A. service: ˈsərvɪs (u is pronounced as ə) B. inform: ɪnˈfɔrm (u is not present, o is pronounced as ɔ) C. include: ɪnˈklud (u is pronounced as u) D. climate: ˈklaɪmɪt (u is pronounced as u) The answer is A, as the pronunciation of "u" in service is ə (schwa), while the others have "u" pronounced as u or ɔ (in the case of inform). 2. A. public: ˈpəblɪk (u is pronounced as ə) B. under: ˈəndər (u is pronounced as ə) C. support: səˈpɔrt (u is pronounced as ə) D. butter: ˈbətər (u is pronounced as ə) Actually, all options have the "u" pronounced as ə (schwa). However, the main difference comes from word "under" whose stress pattern differs from the rest of the words in terms of stress pattern, but not in terms of pronunciation of "u". There is no difference in "u" pronunciation, so no answer is marked. 3. A. meat: mit (ea is pronounced as i) B. bean: bin (ea is pronounced as i) C. sweat: swɛt (ea is pronounced as ɛ) D. meaning: ˈminɪŋ (ea is pronounced as i) The answer is C, as the pronunciation of "ea" in sweat is ɛ, while the others have "ea" pronounced as i. 4. A. mechanic: mɪˈkænɪk (no u) B. chemistry: ˈkɛmɪstri (no u) C. charge: ʧɑrʤ (no u) D. campus: ˈkæmpəs (u is pronounced as u) Actually, only one option has "u", while the rest do not have "u". Therefore, the answer is D. 5. A. suggest: səˈʤɛst (u is pronounced as ə) B. support: səˈpɔrt (u is pronounced as ə) C. survive: sərˈvaɪv (u is pronounced as ə) D. summer: ˈsəmər (u is pronounced as ə) Actually, all options have the "u" pronounced as ə (schwa) or are not pronounced (in the case of "u" being in the word, but as a part of the diphthong). However, the main difference comes from the word "summer" having the stress on the first syllable, while the rest of the words have the stress on the second syllable. There is no difference in "u" pronunciation.