In the modern world, advertising is everywhere! Some people think that ads are great.    1    hate ads, saying that they make our cities and countryside look ugly. Many ads are    2    specifically at teenagers, and some young people see more than 100 advertisements a day. It’s    3    that some ads can be very useful. For instance, they can help you to compare two different    4    so that you can buy the one you    5    need. They can also help you save money. When    6    are listed, you can go to the store with the lowest price. Ads also tell you when stores are having sales.    7   , some advertising can be confusing or    8   . Sometimes the words sound good but don’t really tell you anything about the quality of the product. At other times, the picture in an ad looks a lot    9    than the real thing. So you have to be    10   . At times an ad can lead you to buy something you don’t need at all.