4 . 阅读下面短文，分析并写出画线句子的基本句型
When     1     I first entered the senior high school, I was afraid that no one would make friends with me.     2     There were all strangers around me and I was afraid of speaking in front of my new teachers and classmates.

What if I couldn’t do well in my studies? Would they laugh at me?     3     I became worried and     4     I thought a lot. Later, I realized that I should change my mind. So I set goals for myself and tried my best to realize them. Besides,     5     I took part in ex-curricular activities actively. Finally I got on well with my classmates and became confident.     6     I found my senior high school life really colourful.