多项选择题

Which of the following support the idea that English as a global language is detrimental?
A、If everyone learns English, peope may forget or neglect their mother tongue.
B、If everyone learns English, peope may forget or neglect the importance of inheriting Chinese traditional culture.
C、With the merging of societies and cultures, languages are not lost, but rather merge to some degree to develop a new hybrid language.
D、When Chinese learning English, the traditional culture will not go extinct, but rather be spread over the world.