– Tom, you left the lights in the classroom on.

– Oh, sorry, I _________ to turn them off. Thanks for your reminding.

A．will return

B．am going to return

C．am returning

D．return

法律上规定的用以进行法律推理的准则，称为( )。

A．准用性规则

B．法律概念

C．法律原则

D．确定性规则