There are various advertisements in our lives and we can see them wherever we go. Mostly, advertisements try to persuade people     1     (buy) a product or service, or to believe in     2     idea. But PSAs are meant to educate people about health, safety, or problems     3     affect public welfare.

When it comes to advertisements, we must use our     4     (intelligent) and we shouldn’t     5     (cheat) by them. Many of them use     6     (attract) pictures and clever languages to advertise their products,    7     (bring) huge profits for those businessmen.

    8     (fortunate), not all ads play tricks     9     us though. China began a nationwide campaign in 1996, and since then all kinds of PSAs     10     (appear) around the country. You have probably seen or heard some of them and they can be leant by us.

It is very difficult to find a public place without advertisements now. When     1     (see) in the newspaper or on TV, advertisements will meet our eyes .     2     is true that in the activities of business advertisements     3    (play) a more and more important part now. They tell people about new products and help more in sales. In this way, they help to be on the increase of products. This is     4     big advantage.     5    , advertisements also bring people all kinds of disadvantages. For example, some of the manufactures (生产者) want to win a big market for their products. They are so dishonest that they don’t tell the     6     (true) about their products. When people are watching an interesting TV play, it is suddenly stopped by some advertisements     7     (appear) on the screen. And of course, people may get tired     8     them. Also some advertisements attract children, some of     9    will ask their parents to buy them something in the advertisements. From this point, advertisements     10     (real) have some disadvantages.