quEstions 22 to 25 ArE BAsED on thE ConvErsAtion you hAvE just hEArD、 A．BECAusE thEy lACk sElF-DisCiplinE in thEir stuDiEs.
B、BECAusE thEy spEnD too muCh timE on thE intErnEt.
C．BECAusE thEy hAvE not ExErtED thEir utmost.
D．BECAusE thEy hAvE DEvElopED poor rElAtionships with tEAChErs.