请作者增加词汇丰富度;加强一些长句和复杂句的使用;层次欠清晰,衔接成分很少。
Hello susan I am so sorry for my miss. I were come USA for 3 month, so I can't get driver lisens. My sister help me to go to school every time. But at early she is very busy. so she have on time for my classes. so I am miss the classes.