1. Despite the expensive car, my dad buys it. ( sửa đề )
2. In spite of learning hard, he failed the exam.
3. The last time he met his wife was a long time ago.
-> He last met his wife a long time ago.
-> It's a long time since he last met his wife.
4. I haven't met your mom before.
5. He has played the guitar since 2000.
6. Nam is the most intelligent student in my class.
