ЗНАТОКАМ АНГЛИЙСКОГО!!!

Сегодня получили домашнее задание следующего типа.

What's wrong?
Students and non-native speakers sometimes use strange expressions. Correct the following sentences which are grammaticaly wrong. (Sometimes there may be more than one correct answer)

Example:

They are discussing about how to improve the tax system.

Answer:
They are discussing how to improve the tax system.

1. We are invited to her marriage.
2. I apologize to disturb you.
3. He asked more money.
4. We appreciate you for your kidness.
5. Mini-skirts are recently popular among young women.
6. He was absent for a business trip.
7. See you next morning.
8. I love Korea, specially in spring
9. The result is satisfied.
10. It is not allowed to smoke here.
11. I'll marry you in case you stop smoking.
12. She was dead from a traffic accident.
13. I have difficulty to persuade her.
14. They sent it me.
15. Do you know to make coffee?
16. I'm learning to drive a car.
17. The cost is expensive.
18. I have a promise with him at 6 p.m.
19. MOst of people are afraid of death.
20. The department store is attracting a lot of clients by lowering price.
21. He speaks English very good.
22. She's not saying the truth.
23. The company is very incompetent in the fast-food market.
24. He became mad when he heard the news.
25. She drives very fastly.
26. I don't know he is honest.
27. He didn't mind to show me the way to the hotel.
28. Did you go to swim yesterday?
29. He's busy to read books.
30. They're doing their best to search missing people in the accident.

Пожалуйста помогите исправить ошибки. Если не будет трудно объясните почему так, а не так.Заранее спасибо.