When you were talking to the policeman,I saw a teenager___横线上为什么填get on your car,而不是getting on?印象里see sb doing是看到某人正在做,see sb do是表经常看见的动作
问题描述：
When you were talking to the policeman,I saw a teenager___
横线上为什么填get on your car,而不是getting on?
印象里see sb doing是看到某人正在做,see sb do是表经常看见的动作
答
答案是get on your car and drive off，为什么不是got on your car and 都行see sb do sth 看见 某人做某事 saw已经是用过去式了，就不
答
it should be getting on
答
在这个语境中是表示看到一个完整的事件,并不强调这个事件的过程.