第一句：
In math class, the math teacher gave me the exam paper and told me my math score is very low.
第二句：
In the morning my alarm clock did not rang, so I was late to get up. By the time I arrived at school, the bell went off, I was late.
第三句：
On my way home, very unluckily, I ran in to an old person.
第四句：
I'm very unlucky today. 第一句：
In math class, the math teacher gave me the exam paper and told me my math score is very low.
第二句：
In the morning my alarm clock did not rang, so I was late to get up. By the time I arrived at school, the bell went off, I was late.
第三句：
On my way home, very unluckily, I ran in to an old person.
第四句：
I'm very unlucky today.