The polluted air in this area has a strange smell,__ many people away.为什么要填driving 而不填drove?

The polluted air in this area has a strange smell,__ many people away.为什么要填driving 而不填drove?
The polluted air in this area has a strange smell,__ many people away.
为什么要填driving 而不填drove?

The polluted air in this area has a strange smell,__ many people away.为什么要填driving 而不填drove?
因为实际上是:the polluted air drives many people away.因为主语“The polluted air”与drive是主动关系,所以用现在分词.
另：He came into the classroom,followed by two students.这里用过去分词是因为“He was followed by two students”主语He 与动词follow 是被动关系.