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An Allergy is a hypersensitivity of the body to any substance. This substance can be any chemical ingredient, product, hair, dust, pollen or a germ. Today it is well established that allergens may be substances produced within the body. They are called antiallergenic or autoallergens. They are natural – unmodified tissue proteins that are isolated from the systems that are responsible for immunity. And purchased – proteins that acquire foreign properties against thermal, radiation, chemical, bacterial, viral, and other factors. For example, an allergic reaction develops with glomerulonephritis, rheumatism, arthritis, hypothyroidism.

1. If I didn't have a headache, I would do my work faster.

2. If my parents had more free time, we would spend a lot of time together.

3. If I travelled abroad, I would start vlogging.

4. If I were you, I would stop wasting my time on social media.

5. Unless I study harder, I won't pass my exam.

6. My friend agrees to help me when he has time.

7. If we had played better, we would have won.

8. If my parents had enough money, they would buy a new car.

9. Unless we have a ticket, they won't let us get inside.

10. If I get up early, I won't be late for school.