15．聽下面一段對話，回答第13至第15三個小題． 13．What are the two speakers？ A．Teachers． B．Students C．Reporters． 14．What are they mainly talking about？ A．Subjects． B．Students． C．Teachers． 15．Why does Jack like Mr．Thomas？ A．Because he gives little homework． B．Because he always speaks English． C．Because he explains everything well．
B．
C．