8. Mono wants to become a singer: however, he can't sing or play any instruments. 9. We often post many questions to discuss on a forum after school. 10. Parents should give teens some freedom, but they should also set limits. 11. Nam often logs on to her Instagram account to chat with her sister in Ha Noi. 12. Lan is chatting with some friends, so she can't concentrate on the lesson now. 13. She wanted to prepare for the exam; therefore, she turned off her mobile phone. 14. Mr Buong decided to buy a new laptop last week. 15. She worked hard, so she passed the exam easily. 16. Mr.Quang used the Facebook at 10 p.m last night. 17. Ba is tired because he stayed up late watching the clips on Tiktok last night. 18. He isn't going to the concert because the tickets are too expensive.