who is thE spEAkEr
A、most oF thEm grADuAtED From univErsitiEs From AnD ArounDBEijing.
B、thEirEnglish is BEttEr thAn thE spEAkEr hAD ExpECtED、
C．thEy will BE ChosEn From winnErs oF thE DEBAtE ContEst.
D．mAny oF thEm ArE not nAtivEEnglish spEAkErs.