27.What did I say to cause you to do that?
B.the cause of unhappiness
In learning a foreign language, one should first pay attention to speaking. It is the ground-work(厦门成人高考培训机构基础)of reading and writing. You'd better try your best to speak. Don't be afraid of making mistakes. While you are doing this, a good exercise is to write --- keep a diary, write notes or letters and so on. Many mistakes in your speaking will be easily found when you write.Through correcting the mistakes, you can do better in learning a language.