Упражнение 1.
Вставьте подходящий модальный глагол (must / may / need)
1. May I invite Nick to our house?
2. It may rain soon.
3. You must not make notes in the books.
4. You must pay your bills in restaurants.
5. The baby is sleeping. You must not shout.
6. That diamond bracelet is very elegant but it must have cost a fortune.
7. You need not say anything if you don’t want to.
8. I can hear you quite well. You need not shout.
9. He has left the army and doesn’t need to wear a uniform any more.
10. I’ve bought everything, so you need not go shopping.
11. Tim gave me a letter to post. I must not forget to post it.
Упражнение 2. Complete the sentences with the positive or negative forms of must or have to.
1. Brilliant! I do not have to study tonight because I've finished my exams.
2. You must not use a mobile phone on a plane.
3. You can go out, but you must be home by midnight.
4. Jo does not have to go to school by bus. She lives nearby.
5. We don't have to cook tonight. We can get a pizza.
6. She doesn't have to get up early. She's on holiday.
7. You have to study harder or you are going to fail.
8. You must not drive faster than 120 km/h on the motorway.
Organic food is grown in nature and naturally, not organic which is obtained through greenhouses and not naturally.
In isolated, marginalized regions, organic farmers can increase production by leveraging local natural resources without relying on external resources or food distribution systems over which they have no influence and / or access.It is a must, because organic products are grown much heavier than non-organic and, accordingly, the price of organic products will be higher.
because non-organic foods add
