2.    GRAMMAR TASK-MUST/MUSTN’T - SHOULD/SHOULDN’T             1. My mum thinks I …… spend so much money on clothes.  
        2. You  ……  cross the street when the traffic lights are red.         
3. Twilight" is a really great book. You …… read it soon.
4. Students and teachers ……. be polite to each other.
5. He  ……  eat so many sweets. He's getting really fat.  
(ВСТАВИТЬ ,ЗАРАНЕЕ

1. My mum thinks I shouldn't spend so much money on clothes.
- The word "shouldn't" is used to express something that is not considered the best or appropriate action. In this case, the speaker's mother believes that spending a lot of money on clothes is not a good idea.

2. You mustn't cross the street when the traffic lights are red.
- The word "mustn't" is used to indicate a prohibition or something that is not allowed. In this case, it is not allowed to cross the street when the traffic lights are red. It is important for safety reasons to follow traffic rules and wait for the traffic lights to turn green before crossing.

3. "Twilight" is a really great book. You should read it soon.
- The word "should" is used to give advice or suggest something that is considered a good idea. In this case, the speaker believes that "Twilight" is a great book and recommends reading it soon.

4. Students and teachers should be polite to each other.
- The word "should" is again used to express something that is considered the right or appropriate action. In this case, it is important for students and teachers to treat each other with politeness and respect in order to maintain a positive and conducive learning environment.

5. He mustn't eat so many sweets. He's getting really fat.
- The word "mustn't" is used here again to indicate a prohibition or something that is not allowed. In this case, the speaker believes that the person should not eat too many sweets as it is causing them to gain weight. It is important to maintain a balanced and healthy diet.