In the school hall, where a meeting       , some students are busy preparing for it.

A．is held

B．has been held

C．is being held

D．is to be held

“五四”文学革命在理论上的主要倡导者有（）

A.鲁迅

B.陈独秀

C.胡适

D.蔡元培

E.周作人