1. I see him every day.
2. I saw him yesterday.
3. I have already seen him. He is fine.
4. Nick does his homework every evening.
5. Nick is doing his homework now.
6. Nick did his homework two hours ago.
7. Nick has just done his homework.
8. Bob often plays football.
9. Bob is playing football at the moment.
10. Bob played football last summer.
11. Bob has already played football.
12. The Smiths goes to the theatre once a month.
13. The Smiths went to the theatre last weekend.
14. The Smiths has already gone to the theatre.
15. The Smithsis going to the theatre now.
16. Peter takes a shower every morning.
17. Peter took a shower last morning.
18. Peteris taking a shower now.
19. Peter has just taken a shower.
20. Jane is at school five days a week.
21. Jane is at school now.
22. Jane was at school yesterday.
23. Jane has already been at school.
24. Nelly usually learns poems by heart.
25. Nelly is learning a poem by heart now.
26. Nelly learned a poem yesterday.
27. Nelly has already learned the poem by heart.
28. Mother usually buys milk after work.
29. Mother is buying milk now.
30. Mother bought milk two hours ago.
31. Mother has already bought milk.
32. She usually wakes up early.
33. She woke up late yesterday.
34. She has just woken up
Объяснение:
Витамины - это органические вещества, обладающие высокой биологической активностью. Они работе наших ферментов и гормонов, отвечающих за все обменные процессы в организме.
Витамины очень важны для нормально развития и роста организма, обновления тканей, обмена веществ, а также для систематического осуществления физиологических функций организма. Витамины нужны всем живым существам и организмам: животным, растениям, людям. Человек постоянно нуждается в витаминах независимо от возраста. Недостаточное употребление витаминов снижает защитную силу организма, нарушая обмен веществ. При длительном недостатке витаминов и микроэлементов, в организме могут возникнуть тяжелые заболевания, которые зачастую становятся причиной смерти.
