Due to the widespread ______ of this medical technology, more diseases can be discovered and treated at an early stage.

The driver should be punished! He shouldn’t _______________ running red lights.

(2012·安徽高考)I remembered ________ the door before I left the office, but forgot to turn off the lights.

She _______ the path as the trees around her became thicker．

An athlete can’t play balls well without severe ______.