Task 22. Choose the right modal verb in the following sen¬tences. Example: They mustn’t/needn’t buy a new car. Their car is good enough.
1. You mustn’t/needn’t attend the meeting. There will be nothing interesting this time.
2. You mustn’t/needn’t talk to the driver while he is driving.
3. You mustn’t/needn’t​smoke in front of the children.
4. You mustn’t/needn’t vacuum-clean the room. I’ll do it myself.
5. You mustn’t/needn’t take dogs into the restaurant.
6. You mustn’t/needn’t feed the animals in the zoo.
7. Children mustn’t/needn’t run in the corridor.
8. We mustn’t/needn’t cut the grass; it’s still quite short.

Task 23 Read the text and say whether these statements are true or false.
1. People must not eat red meat.
2. You may have problems with your heart if you eat a lot of veal.
3. White meat can cause lung diseases.
4. There will be fewer starving people if more people become vegetarians.
5. Children must have a balanced diet.
6. There are practically no vitamins in meat.
7. Many people think that meat is very delicious.
8. Both children and adults must have meat dishes every day.