After the student had made some progress, the essays that she write would typically stay at a certain standard.
The three essays written by Qiao Nan had proved this point.
On the contrary, the standard of the essays written by Qiao Zijin's during the monthly and mid-term exams, especially the latter which was written recently, was too different from the winning essay. They were not that bad, but definitely not comparable.
Qiao Zijin's teacher quietly finished reading the two language papers of Qiao Nan, then she turned pale.
Both are Chinese teachers. After seeing Qiao Nan's essays, Qiao Zijin's teacher understood everything.
The standard of Qiao Nan's essays were consistent.
Having seen the two essays by Qiao Zijin, it was without a doubt that Qiao Nan was the one who wrote the winning piece.