16. How often do most people watch TV?
A. Every day. B. Once a week. C. Twice a week.
17. What do some scientists think our life will be like without TV?
A. Colourful. B. Exciting. C. Boring.
18. Which is NOT mentioned as a result of watching too much TV?
A. We will get fat. B. We will get near-sighted. C. We will lose weight.
19. How many problems are talked about in the passage?
A. 2. B. 3. C. 4.
