We could see that he was trying to _____ his own responsibility for the delay, instead of accepting his fault.

A．run over

B．smooth over

C．pass off

D．turn down

皮亚杰的道德发展阶段论是从( )开始的，因为他认为这之前儿童没有道德。

A．1岁

B．2岁

C．3岁

D．5岁