Rewrite as indicated below.
2. Tom was seriously advised by his teacher, but he insisted in disturbing the class.
=> although
=> in spite of
3. Mary tried several times, but she couldn't find a taxi.
=> although
=> in spite os
4. Although he felt tired, he stayed up to keep us company.
=> dépite
5. They didn't have much time, however they came to visit us.
=> in spite of
6. He is too old, but he still does his gymmastics every morning.
=> although
=> despite
7. Although the shirts are very expensive, people buy them because they are trendy.
=> in spite of
8. Although he had no qualifications for it, he got the job.
=> in spite of
9. I didn't like the CD you have recommended me, but I bought it all the same.
=> although
=> in spite of
10. I told her all the trurth. However she didn't believe me.
=> although
=> in spite of
11. They didn't play well, but they won the game.
=> although
=> despite
12. They felt very cold but they didn't turn on the heater.
=> despite
13. Bill had a terribla headache. However he kept working.
=> although
=> in spite of
14. He has all the necessary books but he doesn't use them to study.
=> despite
15. She works very hard but she doesn't deserve a raise.
=> although
=> in spite of
16. She is not prepared for the test, but she has to do it.
=> despite
17. She was ill but she had to go to school.
=> although
18. It was a nice sunny but there was nobody at the beach.
=> although
=> in spite of
19. He arrived later but he finish work earlier than the others.
=> although
20. The new waitress seems honest and diligent. However the boss doesn't like her.
=> although
=> in spite of