根据短文内容和所给中文提示，写出空白处各单词的正确形式。每空限填一词。
I am a middle school student. I used to spend too much time ____(闲聊) on line at night. The next day, I often felt. ___(困倦的) in class, and I couldn’t .__ __(回答) correctly to the teachers when they asked me questions. I made lots of ____(错误) in the tests. I didn’t know the ___(重要) of studying hard. And my mother always ___(担心) about my school. At _____ (现在)  I have _____(认识到) that it’s silly of me to do that. I listen carefully in class and do my homework____(小心地) every day. At night I read some books after finishing the homework to be knowledgeable。I have good grades now. I will be more careful and ____(耐心)。 My mother and my teachers are very impressed.