求助英语作文advertising!~

Advertisements are everywhere. In the streets, in our homes, even in elevators and public toilets. The idea is simple, tell someone something long enough and they will believe it. Since companies learnt this fact it seems where ever we go we can always see advertisements, it's virtually impossible to escape them. But it doesn't just stop there. Repetition is not enough, they also need to get you hooked on the product/service so what they do is they create a motto or a jingle that you are bound to repeat at some point or another. Companies are getting smatter and the public are getting hooked more and more easily. I wouldn't be suprised if one day they will advertise to us in our sleep!