thosE who hAvE pAssED thEir CritiCAl pErioD For lAnguAgE lEArning ______.
A．ArE morE slow in lEArning thAn young ChilDrEn
B．ArE impossiBlE to lEArn A nEw lAnguAgE wEll
C．hAvE no ADvAntAgEs in lEArning ovEr young ChilDrEn
D．FinD whAt thEy hAvE lEArnED morE EAsiEr to ForgEt