A、AirlinE pilots must stArt to lEArnEnglish in 21st CEntury.
B．As A BAnk ClErk hE shoulD lEArn spECiAlEnglish to mEEt thE nEEDs oF his work.
C．pEoplE CAn BEnEFit From intErmEDiAtE lEvEl oFEnglish in thEir own FiEl
D、
D、tEAChErs with intErmEDiAtE lEvEl oFEnglish CAn tEACh thEir stuDEnts wEll.