2. If you want to learn English well, you need to speak as much as possible.
3. The purpose of college education is to teach you how to learn and arrange your time.
4. Although many years have passed, I still clearly remember what happened that day.
5. Mary caught a cold. I really regret that I did not remind her of taking more clothes yesterday.
6. Health is the key to happiness. Only healthy people can enjoy the fun of life.
7. The novel is the most popular one in recent years, it worth reading once again.
8. This sweater does not suit me .Do you have any other styles?
9. He failed to complete his homework on time last night , so he did not go to watch the competition/game/match.
10. Most people who were invited to attend my birthday party yesterday are my friends.
11. When learning to speak English, you should never fear to be laughed at.
12. I am sorry, I don't know what you are talking about. You must take me as someone else.
13. If you can provide satisfactory after-sale service, your products will possess a vast market.