wE know From thE pAssAgE thAt______.
A．it is importAnt to BE suCCEssFul in tEAChing thE young
B．Enough sAlAriEs ArE nECEssAry in mAking quAlity pEoplE BEComE tEAChErs
C．grEAtEr progrEss hAs to BE mADE in tEAChing
D．tEAChing is A proDuCt oF thE soCiEty's Division oF lABor