V. Переведите текст, обращая внимание на модальные глаголы и их эквиваленты.
1. Agricultural soils must have some organic matter and some mineral matter. 2. Crops cannot grow well if there is not enough water, plant food, heat and air.
3. The children were allowed to dig the ground with a spade and loosen it with a rake.
4. They are to water the plants and to weed their vegetable gardens.
5. If farmers want to have high yields of grains, fruits and vegetables they should have a fertile soil.