Error Correction: 2. The clothing of one group is quite different from that of other groups.
Correct answer: B. different

1. When you play games online, be careful when you make friends with strangers.
   Correct answer: A. games; C. with

2. She goes to the dance club with her friends every evening on Sunday.
   Correct answer: D. on Sunday

3. Han lives in a cottage house in Cuc Phuong National Park.
   Correct answer: A. a cottage

4. Playing team sports gives you more fun than individual sports.
   Correct answer: C. more fun

5. They found the games more difficult to win than they had expected.
   Correct answer: B. difficult; D. expected

6. Wonderful family days out are some of the most special memories.
   Correct answer: C. the most

7. Co Tu people love to share with guests about their lives and tradition.
   Correct answer: C. lives

8. Do you know that an average person checks Facebook over 30 hours a week?
   Correct answer: A. checks

9. Most ethnic groups live in rural areas, growing rice and practising slash-and-burn farming.
   Correct answer: D. farming

10. The Muong people are the ethnic minority who live in the mountainous regions of Vietnam.
    Correct answer: B. regions

11. We have recently visited some of the remote communities in the north highlands.
    Correct answer: C. highlands

12. Young Ngai women did not receive the inheritance after their parents died.
    Correct answer: A. Young

13. The Ta Oi managed to preserve their proverbs, folk songs, and stories.
    Correct answer: B. to preserve

Sentence Transformation:

1. The film "Avatar" takes us more than two hours to watch.
2. She's interested in hanging out with friends on Saturday evening.
3. She only lets her children watch television at weekends.
4. Would you mind helping me with this box?
5. DIY skills are easier to learn than I thought.