The teachers often tell their pupils ____ across the road when the traffic light is red.

A．not go

B．not to go

C．don’t go

D．didn’t go

北京的古老民居—四合院，记录的政治文化信息是[ ]

A．当地的气候特点            

B．当地当时的经济水平

C．当地的地形特点              

D．封建时代多代同居的家庭关系