I think she is a best student in our class有什么错

问题描述:

I think she is a best student in our class有什么错

a改成the,这是*

*前面用定冠词,表特指,定冠词的固定用法

应该是she is the best student

a 改成 the
最好的学生只有一个,定冠词表达独一无二的事物

best 为*,前面应该用the 而不是a

I think she is the best student in our class