They are broading the bridge to the flow of traffic.
A. put off
B. speed up
C. turn on
D. work out
网友回答
A. put off
(答案→)B. speed up
C. turn on
D. work out
解析:句意:今天早晨Mary逃脱了因迟到而应遭受的惩罚。escape from doing sth逃脱,from可以省略,当句子的escape动作执行者是该动词ing形式的动作承受者时用v-ing的被动式:being + 过去分词。故选C。