1.Show the sheme of the benzaldehyde“silver mirrow”
reaction.
2. Write the equation of the
butanal formation from the
alcohol.
3. Write isomers and give
names for
methylisopropylketone.
4. Give the scheme of aldol
condensation.
5. Formaldehyde gives
Cannizaro's reaction
whereas acetaldehyde does
not. Why?​

2 Cheese is made from milk.

3 The roof of the building was damaged in a storm a few days ago.

4 You were invited to the wedding. Why didn't you go?

5 A cinema is a place where films are shown.

6 In the United States, elections for president are held every four years.

7 Originally the book was written in Spanish, and a few years ago it was translated into English.

8 Although we were driving fast, we were overtaken by a lot of other cars.

9 You can't see the house from the road. lt is surrounded by trees.

1 How is glass made?

2 When was television invented?

3 How are mountains formed? (горы вообще) или How were the mountains formed? (про конкретные горы)

4 When were antibiotics discovered?

5 What is silver used for?

1. it snow steadily the whole week and it still   of  snow. 2» we to  climb for six hours already, but we are  not reach the top of the mountain yet. 3. the pain already go but the child still cry, 4. the workers work very hard these two weeks, they were busy with the interior decoration of the house» 5. he to  solve the crossword puzzle for an hour and he sa he was  about to solve it as he thinked over the last word о 6. he worked at the language all the time and made great progress. his pronunciation   was  rather good, only a slight accent remain. 7„ не finished  the first part of his book and now he wrote the second. he worked at his book for two years, 8. dusliri hoffman, who played the hero, given a fine performance. 9. why your hair were wet? you swim? 10, doctors and scientists   show  recently the benefit of fish in the diet