Based on the provided International Phonetic Alphabet (IPA) notations, here are the answers to your tasks:
### Task 1: Choose the word whose underlined part is pronounced differently from the others in each group.
1. C. **giri** (pronounced as "giri*" with a different vowel sound from the others)
2. C. **mother** (pronounced "ˈməðər", with a different vowel sound)
3. A. **curtain** (pronounced "ˈkərtən", the vowel sound is different)
4. D. **star** (pronounced "stɑr", with a different vowel sound)
5. C. **pear** (pronounced "pɛr", differing from the others)
6. A. **infarm** (pronounced "infarm*", differing from the others)
7. A. **off** (pronounced "ɔf", differing vowel sound)
8. C. **knives** (pronounced "naɪvz", differing from the others)
9. A. **aroand** (pronounced "aroand*", differing vowel sound)
10. A. **pheto** (pronounced "pheto*", differing from the others)
11. D. **over** (pronounced "ˈoʊvər", differing vowel sound)
12. A. **live** (pronounced "lɪv", differing from the others)
13. A. **teacher** (the other three words have a different vowel sound)
14. A. **girl** (pronounced "gərl", differing from the others)
15. A. **customer** (pronounced "ˈkəstəmər", differing from the others)
16. A. **of** (pronounced "əv", differing from the others)
17. A. **vuice** (pronounced "vuice*", differing from the others)
18. D. **movic** (pronounced "movic*", differing from the others)
19. C. **area** (pronounced "ˈɛriə", differing from the others)
20. D. **leat** (pronounced "leat*", differing from the others)
### Task 2: Choose the word whose underlined part is pronounced differently from that of the others.
1. B. **giet** (pronounced "giet*", differing from the others)
2. C. **barn** (pronounced "bɑrn", differing vowel sound)
3. C. **concert** (pronounced "ˈkɑnsərt", differing from the others)
4. A. **preler** (pronounced "preler*", differing from the others)
5. C. **pieture** (pronounced "pieture*", differing from the others)
6. B. **goverament** (pronounced "goverament*", differing from the others)
7. B. **pieture** (pronounced "pieture*", differing from the others)
8. A. **silence** (pronounced "ˈsaɪləns", differing from the others)
9. C. **sister** (the other three words have a different vowel sound)
10. A. **burn** (pronounced "bərn", differing from the others)
11. C. **leat** (pronounced "leat*", differing from the others)
12. B. **laogh** (pronounced "laogh*", differing from the others)
13. B. **cough** (pronounced "kɔf", differing from the others)
14. B. **rough** (the other three have different vowel sounds)
15. B. **fight** (the other three have different vowel sounds)
16. B. **toagh** (pronounced "toagh*", differing from the others)
17. C. **of** (pronounced "əv", differing from the others)
18. A. **leaf** (pronounced "lif", differing from the others)
19. A. **of** (pronounced "əv", differing from the others)
20. C. **of** (pronounced "əv", differing from the others)
### Task 3: Choose the best answer to complete each of the following sentences.
1. D. **puts**
2. C. **provide**
3. C. **what**
4. B. **rest**
5. C. **obesity**
6. B. **weak**
7. C. **physical**
8. A. **and**
9. C. **flu**
10. D. **lifestyle**
11. D. **tips**
12. A. **playing**
13. B. **swimming**
14. A. **gaining**
15. B. **experts**
16. A. **collecting**
17. D. **picture**
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