在一篇论文或文章中挑选一段，要求学生修改改段落中的语法和拼写错误。
"And they was going to send me to school, and then I found out about the North Side Gang...I thought it was a good idea, so I joined up."
"They were going to send me to school, but then I found out about the North Side Gang...I thought it was a good idea, so I joined." 

修改后的语法和拼写没有明显错误。