Who are the three giants of postgraduate English?

The following three teachers are the "three giants of postgraduate English":

1, Tang Chi, former guest lecturer of New Oriental Education Technology Group, English reading teacher of New Oriental Postgraduate Entrance Examination, and English reading lecturer of New Oriental Online Postgraduate Entrance Examination.

2. Monkey, whose real name is Bian Mingrui, graduated from Renmin University of China with a bachelor's degree, and his graduate students studied at Ecole Supé rieure de Commerce.

3. Xie Binbin, former lecturer of postgraduate entrance examination at Xi University and outstanding teacher of New Oriental Education Group.