短文改错,请写出为什么错 .十个错误.

题目

短文改错,请写出为什么错 .十个错误.
Yesterday,I go shopping in the supermarket.As I was looking at the goods I noticed an old man who was seemed to be following me where I went.As I moved,there he was,smiled at me.I wondered if I had done something wrong.But I didn't think I had.So,I believed if there must be something wrong with him.I became a bit scaring.At the food section I was selecting the chicken when I felt a tap on the shoulders.Turning around,I saw that it was same man."Lady," he finally said,"you have your shopping basket."At that moment Irealized I miaunderstood him,so I said sorry for him at once.

答案

Yesterday,I go(改为went)shopping in the supermarket.As I was looking at the goods I noticed an old man who was (去掉was)seemed to be following me where(改为wherever) I went.As I moved,there he was,smi...