Exercise 1: Pronunciation

1. A. purpose (the underlined "o" is pronounced /ə/, while others have /ɒ/ or /ɔ/)
2. D. Stephen (pronounced /ˈstiːvən/, while others have /f/)
3. B. target (the "g" is pronounced /g/, while others have /dʒ/)
4. C. chance ("ch" is pronounced /tʃ/, while in others it is /k/)
5. C. page ("g" is pronounced /dʒ/, while in others it is /g/)

Exercise 2: Vocabulary & Grammar

1. B. enjoys
2. D. collector
3. D. toothache
4. A. organization
5. A. has offered
6. B. raise
7. D. tutoring
8. A. without
9. C. didn’t start
10. C. decorations

Exercise 3: Error Correction

1. (A) gives away → gave away (because "two days ago" indicates past simple tense)
   → "Our class gave away warm clothes to street children two days ago."
2. (D) twice week → twice a week
   → "My sister tutors children from poor families twice a week."
3. (C) but → because ("but" contradicts the meaning of the sentence)
   → "I eat more fruit and vegetables because I want to be fitter and healthier."
4. (C) allergic → allergy
   → "You may have an allergy. Be careful with what you eat and drink."
5. (B) please → pleasure
   → "You should choose a hobby because it will give you pleasure and help you relax."

Exercise 1: Pronunciation

1. A. purpose (the underlined part is pronounced /s/ while others have /t/)
2. D. Stephen (pronounced /ˈstiːvən/, while the others have /f/)
3. B. target (the underlined "g" is pronounced /g/, while others have /dʒ/)
4. C. chance (the underlined "ch" is pronounced /tʃ/, while others have /k/)
5. C. page (the underlined "g" is pronounced /dʒ/, while others have /g/)

Exercise 2: Vocabulary & Grammar

1. B. enjoys
2. D. collector
3. D. toothache
4. A. organization
5. A. has offered
6. B. raise
7. D. tutoring
8. A. without
9. C. didn’t start
10. C. decorations

Exercise 3: Error Correction

1. (D) street children → street children (two days ago → past simple → "gave away" instead of "gives away")
   → "Our class gave away warm clothes to street children two days ago."
2. (D) twice week → twice a week
   → "My sister tutors children from poor families twice a week."
3. (C) but → because ("but" contradicts the meaning of the sentence)
   → "I eat more fruit and vegetables because I want to be fitter and healthier."
4. (C) allergic → allergy
   → "You may have an allergy. Be careful with what you eat and drink."
5. (B) please → pleasure
   → "You should choose a hobby because it will give you pleasure and help you relax."

• 1. B. attractiveness → "What is more important to you, intelligence or attractiveness?"
• 2. A. informal → "They started as informal gatherings, but they have become increasingly formalized in the last few years."
• 3. B. communication → "Children who are isolated and lonely seem to have poor language and communication."
• 4. D. selection → "There is a wide range of selection in the education system of the USA."
• 5. C. educator → "As an educator, Mr. Pike is very worried about the increasing juvenile delinquency."
• 6. A. academic → "He did not do well at school and left with few academic qualifications."
• 7. C. publicize → "The Minister of the Education and Training Department appeared on TV last night to publicize his new policy."
• 8. C. achievement → "He owed his success not to privilege but to self-education and a driving desire for achievement."
• 9. B. requirement → "To Vietnamese students, the requirement examination to university is very difficult." (Note: It should be "the entrance examination" instead of "requirement examination" for better grammar.)
• 10. B. technological → "Despite many recent technological advances, there are parts where schools are not equipped with computers."