任务型阅读。
     1. Does the colour of your teeth make you __1__ to smile? NO?
     Then you need to do something about it. __2__ a toothpaste (牙膏) that will give you a shiny white
 smile. A beautiful smile makes other people want to smile back at you. So, don't wait for another day.
 Switch to the way to bring a smile to your face. Try ours today!
     2. How do you feel about your hair?
     Have your friends ever told you your hair looks great, and does it feel silky too? That's what you want.
  Isn't it? Use our scientifically __3__shampoo. Why? Because it's important for you to take good care of
  your hair.
     Make people want to look at you as you pass by.
     SHOW THEM YOUR CARE ABOUT YOUR HAIR!
     3. Teenagers wear them. Why? Because they work!
     Our __4__not only keep the sun out of your eyes, but they also look fashionable. Ours are the best. 
 They look good, and they help to protect your eyes, other types doesn't even do that!
     Many styles, many colours, there's a pair or even two for everyone.
     BE A COOL CUSTOMER! WEAR THEM AND FEEL ON TOP OF THE WORLD!
A) 用方框内所给单词的适当形式补全文中空白处。