一个五角形光源，垂直射在一个三角形小孔上，在小于孔后面的光屏上形成的一光斑是（   ）

A．三角形

B．方形

C．五角形

D．圆形

—Did you see who the driver was?

—No, so quickly ____ that I couldn’t get a good look at his face．

A．does the car speed by

B．did the car speed by

C．the car sped by

D．the car speeds by