1.He seems to know everyone here. 2. Until the XXth century, cardiovascular disease was considered not to be a serious problem. 3. Nearly a quarter of fatal attack victims were reported to have been below age 65. 4. Bacteria which cause gum disease was found by researchers to be able to travel through the bloodstream. 5. Patients with gum disease are likely to suffer from narrowing of the arteries more often. 6. that refined carbohydrates are believed by many dermatologists to trigger inflammation in the skin. 7. that the number of diabetics is supposed by the WHO experts to double by 2030. 8. The first book is said to have been devoted entirely to dentistry appeared in the XVIth century. 9. Ancient Romans are known to have been able to make false teeth and even removable dentures from ivory. 10. The hardness of porcelain is considered to be very high.
I. What are you doing here now? - - We are listening to the radio. 2. Do you want to see my father? - Yes, I do. 3. Michael knows German rather well. He wants to know English, too, but he has little time for it now. 4. What magazine are you reading? - - It is a French magazine. There are good articles on sports here. Are you interested in sports? - - Yes, I am. But I don't know French. 5. We are having an English lesson now. 6. Does Lena usually prepare her homework at the university? - No, she doesn't. As a rule, she works at home. — And what is she writing now? -Oh, she is writing an article for our wall newspaper. 7. Who is that man who is standing in the doorway? - - Don't you recognize him? It is John, my cousin. 8. I have no time now, Iam having dinner. 9. Is your family leaving St. Petersburg in summer? - Yes, we always go to the sea-side. We all like the sea. Mother stays with us to the end of August, but father returns much earlier. 10. Where are Tom and Nick now? — They are having a smoke in the garden.
