Choose the right form to render the idea into English
1.новый материал обычно объясняется учителем
a)were explained
b)are explained
c)is explained
d)will be explained
2.новый материал объяснялся вчера в это время
a)am explained
b)have been explained
c)was being explained
d)was explained
3.новый материал будет объяснен на следующей недели
a)will have been explained
b)are explained
c)is explained
d)will be explained
4.не входите в класс. Там объясняется новый материал
a)is explained
b)are being explained
c)is explained
d)is being explained
5.новый материал уже объяснен
a)have been explained
b)are explained
c)has been explained
d)have explained
6.новый материал будет объяснен в конце недели
a)were being explained
b)will explained
c)will have been explained
d)will be explained
7.новый материал был объяснен еще до каникул​

The Nobel Prize awarded to Professor F. Haber Institute (Berlin) Gerhard Ertl "for pioneering research in the field of surface chemistry." Chemical reactions on the catalyst surface play a decisive role in many industrial plants. surface chemistry explains are many processes - the metal corrosion to ozone depletion (in the latter case, the key step of the reaction can proceed at the surface of small ice crystals in the stratosphere). Semiconductor Manufacturing - another area that depends on the information on the characteristics of surface chemistry. Ertl was one of the first researchers to evaluate the potential of the surface chemistry. Step by step he has developed a methodology for surface chemistry by demonstrating how different experimental procedures allow to obtain a comprehensive picture of the reaction on the surface. Its development laid the scientific basis of modern surface chemistry, his methodology is used both in basic research and in the development of chemical industry products. The approach developed by Ertl, based not only on the results obtained in the study process they Bosch-Haber used in the fixation of atmospheric nitrogen. He also studied the oxidation of carbon monoxide on the platinum surface, the reaction is used for the catalytic purification of automobile exhaust.

1. Steve always arrived at work in time.

Steve will always arrive at work in time.

2. They often saw Tom because he lived near them.

The will often see Tom because he will live near them.

3. Julia was an artist. She drew very beautiful pictures.

Julia will be an artist. She will draw very beautiful pictures.

4. It snowed a lot in winter.

It will snow a lot in winter.

5. Did they go to the cinema?

Will they go to the cinema?

6. Fred and Lisa didn't like anybody and nobody liked them.

Fred and Lisa won't like anybody and nobody will like them.

7. Did your brother like football?

Will your brother like football?

8. Mary spoke Italian but she didn't speak English.

Mary will speak Italian but she won't speak English.

9. I didn't know where Martin was.

I won't know where Martin will be.

10.She went to the theatre once a week.

She will go to the theatre once a week.