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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. What did you do two weeks ago? - We went on our exchange trip to England.

2. What did you do at Springfield School? - We stayed at Springfield School.

3. What did you do every morning? - We had English lessons.

4. What did you do in the evenings? - We took part in sporting or entertaining activities.

5. What did we do in various places? - Every day we visited different famous sights of the capital.

6. What did you do every day? - Yes, we went on excursions to other cities.

7. What did you do in London? - We spent a week in London.

8. What was your perception of the trip? - Everybody enjoyed the trip.

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