Clean-cleaned - cleaned
wash-washed-washed
watch-watched-watched
look-looked-looked
visit-visited-visited
open-opened-opened
In the first half of the XX century the American researchers and scientists found out that regular chewing of a cud helps to get rid of consequences of tension and a stress, takes off fatigue from muscles. When the American government learned about it, the decree in which each military soldier of the USA had to be provided every day with chewing gum was issued. After this case, at cinema there was an image of the cool American soldier who chews chewing gum.In days of the Prohibition started adding a carnation or mint to chewing gum for breath refreshing.In 1928 Walter Dimer from Flir's company created successful structure for an inflatable cud - babl-din. The first commercial party of an inflatable cud was painted in pink color, is there was the only dye which appeared near at hand at Dimer when he decided to make the creation more attractive to eyes.Development of sugar substitutes in the 1950th led to emergence of the chewing gums without sugar which are also promoting the best protection of teeth and an oral cavity.In the second half of the 20th eyelid there was a chewing gum capable to bleach teeth.<span>There were glazed chewing gums, etc.</span>
1 was
2 is
3 were
4 are
5 were
6 was
7 was
Blood pressure
Level
Primary hypertension
Secondary hypertension
Cushing's syndrome
Unknown etiology
Hypertension crisis
№11.
1.-
2. What are you doing at work at the moment?
3. How often do you go out with friends?
4. What are you like doing? (Чем вы увлекаетесь?)
What do you like to do? (Что ты любишь делать?)
Смысл один и тот же.
5. What film do you like to watch?
6. What are you usually do at the weekends?
7. Are you reading a good book at the moment?
8. Are you playing any sports these days?
9. Why do you study English these year?
10. Are you doing any others courses at the moment?
