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Pyfytz
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What about a test? Check yourself :)
When ... start work?

1.you do
2.are you
3.do you

I ... 100 pounds on these boots and they're torn!

1.spend
2.paid
3.spent

She ... and walked away.

1.has smiled
2.was smiling
3.smiled

When I ... college, I started looking for a job.

1.leave
2.left
3.have left

I usually ... to Helen when I have a problem.

1.am talking
2.have talked
3.talk

I can't ... computer games. In fact, I hate them.

1.stand
2.fond
3.keen

It's important ... good relationships in the family.

1.having
2.have
3.to have

I'm not very keen ... violent films.

1.in
2.about
3.on

... to eat out on Saturday afternoon?

1.Are you liking
2.Would you like
3.Do you like

What are your plans for weekend? .... anything nice?

1.Did you do
2.Are you doing
3.Do you do

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Ответы на вопрос:

Denze111
Denze111
4,8(56 оценок)

1) 3.do you

2) 1.spend

3)2. was smiling

4) 2. left

5) 3. talk

6) не знаю Объяснение:

azbyka1234567890
azbyka1234567890
4,5(58 оценок)
The next time you get a cavity in a tooth, you can blame it on herself-maybe, too, the dentist who is not aware of. the so-called saries-rot teeth-this is, or should be, an old hat, are largely obsolete. what are the causes of the collapse? ever use acid for etching away at a piece of metal? this, in a nutshell, is what happens to you in the mouth and collapse. always mouth bacteria-great variety. bugs feed on food particles. as a result of their feeding acid production. acid eats away at the tooth enamel. this is the toughest stuff in the body, but it's not acid proof. in the end, the acid penetrates. he could make tiny holes that you'd never suspect that it is. but it may be enough to allow the acid to begin work on a soft, bone, dentin, enamel and then under the pulp, live part of the tooth where nerves and blood vessels. as soon as the process of decay reaches the pulp, it goes without saying that you will have pain and have a good chance of losing a tooth. contrary to what you may have heard, the aching tooth is not necessarily local. dental diseases are directly responsible for the overall health of the poor, affecting patients of all ages. no one knows how many diseases are caused by, or contributed to, by dental diseases. among those particularly suspect are rheumatic diseases, gastro-intestinal and renal diseases, skin diseases, and bacterial endocarditis (heart infection). the latest developments in dentistry are especially welcome, for american mouth a disaster zone. more than 20 million americans have lost all their teeth; 90000000 have 18 or more missing, decayed. or sealed teeth. at age 35, one out of every five people needs dentures; at 55, every second. two thirds of young people under the age of five have teeth, and the dolina suchej wody gasienicowej, five out of every six. modern dentistry, mechanical system and is able to perfectly fix-it work, had to wait a long time key to any practical way to stop cavities before he can get to work. american physician, dr. edgar, served as examiner italu of immigrants in this country, said that many came from the naples area was stained brown, but healthy teeth. it turned out that fluoride ingested regularly in childhood can do something remarkable. it can be installed, and their teeth were formed, so in conjunction with enamel and made it more acid-resistant materials, therefore more resistant to decay. in controlled amounts, it will not cause color change, and the emptiness will be reduced, at least for children-from 50 to 65 per cent. next opening came about 20 years ago: fluoride can be applied directly to the enamel. if the dentist painted on four layers of sodium fluoride solution two percent every three years, caries will be reduced up to 40 per cent of 25-but only in children under 15. it didn't work for adults. the search was then on new compounds that may be better than sodium fluoride. this has led to a combination of tin tin, fluoride and fluoride. tin fluoride is one of the applications was 38 percent a year as more effective than sodium fluoride out of four. it was also revealed that the tin fluoride could work on adults as well as children. meanwhile, indiana university investigators are working on a project to develop a toothpaste that can help fight decay. indiana investigators finally found a way to include the tin fluoride in toothpaste so it wouldn't be lost. first, the teeth are polished with a new mix by contains17 per cent tin fluoride pumice. immediately after this, in 10% of tin-painted on the teeth of fluoride solution-15-second procedure. the first two steps to start a person out and the third step is simply a daily use of fluoridated toothpaste.

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