You should say:

What did this advertising promote?

Where did you see this?

What was the content of it?

Why do you think it is impressive?

故事线：在网上看到运动跑鞋的广告，购买到后就

高分语料：Unlike a normal running shoe each toe was separate. It was really strange to see something like that because I had just been wondering a few weeks earlier why someone hadn’t invented a running shoe like this before - and then a couple of weeks later by pure coincidence I came across them on the internet. I wasn’t even looking for them or anything.