I'll go through each question and provide the answer based on the pronunciation.
1. A. although: ɔlˈðoʊ, B. through: θru, C. within: wɪˈθɪn, D. smooth: smuð
Answer: B. through (θru has a distinct 'th' sound, whereas the others have a 'th' sound with a different pronunciation)
2. A. wicked: ˈwɪkəd, B. invited: ɪnˈvaɪtɪd, C. hatred: ˈheɪtrəd, D. tired: taɪərd
Answer: A. wicked (ˈwɪkəd has a short 'i' sound, whereas the others have different vowel sounds)
3. A. increased: ˈɪnkrist, B. released: riˈlist, C. missed: mɪst, D. advised: ədˈvaɪzd
Answer: B. released (riˈlist has a distinct 'i' sound, whereas the others have different vowel sounds)
4. A. combine: ˈkɑmbaɪn, B. collect: kəˈlɛkt, C. content: ˈkɑntɛnt, D. connect: kəˈnɛkt
Answer: B. collect (kəˈlɛkt has a distinct 'ɛ' sound, whereas the others have different vowel sounds)
5. A. because: bɪˈkəz, B. automatic: ɔtəˈmætɪk, C. laughter: ˈlæftər, D. audience: ˈɔdiəns
Answer: A. because (bɪˈkəz has a short 'i' sound, whereas the others have different vowel sounds)
6. A. wood: wʊd, B. noodle: ˈnudəl, C. mood: mud, D. moon: mun
Answer: A. wood (wʊd has a distinct 'ʊ' sound, whereas the others have different vowel sounds)
7. A. lean: lin, B. lead: lɛd, C. spread: sprɛd, D. dean: din
Answer: B. lead (lɛd has a distinct 'ɛ' sound, whereas the others have different vowel sounds)
8. A. mine: maɪn, B. determine: dɪˈtərmən, C. line: laɪn, D. pine: paɪn
Answer: A. mine (maɪn has a distinct 'aɪ' sound, whereas the others have different vowel sounds)
9. A. sink: sɪŋk, B. income: ˈɪnkəm, C. link: lɪŋk, D. single: ˈsɪŋgəl
Answer: B. income (ˈɪnkəm has a short 'i' sound, whereas the others have different vowel sounds or combinations)
10. A. cover: ˈkəvər, B. refer: rɪˈfər, C. prefer: prɪˈfər, D. circle: ˈsərkəl
Answer: D. circle (ˈsərkəl has a distinct 'ər' sound, whereas the others have different vowel sounds or combinations)
Here are the answers:
1. A. so
2. C. despite
3. B. afterwards
4. A. disappointment
5. C. upon moving
6. B. against
7. C. teacher's class
8. D. Apart
9. A. task
10. A. pair of boots