Choose the right variant

1. English is the main foreign language which______within most school systems.

a)teach c)teaches

b) is taught d) is teaching

2. On festive occasions sweets______at the end of a meal.

a) are served c) is being served

b) is served d) served

3. If the vegetable we______is very soft a crunchy relish

a) are serving, may be added

b) are served, may be added

c) is serving, may be added

d) may be served, added

4. In India the right hand______for eating.

a) used c) is used

b) uses d) is being used

5. Needless to say, hands______before and after eating.

a) must wash c) wash

b) must be washing d) must be washed

6. Some of the rice______ plain to enable us to eat it with other dishes.

a) is left c) is leaving

b) left d) is being left

7. I haven't got a large appetite and when I______my fa­vourite food, I leave half of it on the plate.

a) was given c) have given

b) gave d) am given

8. My father______that roast meat is not healthy.

a) persuaded c) has persuaded

b) has been persuaded d) persuades

9. She stood in the shadows of the jungle, knowing that she ______by the Indians.

a) must follow c) must have been followed

b) must have followed d) followed

10. She thought the arrow______poisoned.

a) is c) can be

b) may be d) could be

11. He knew the boys______rescued.

a) would be c) are

b) have been d) '11 be

12. Japan______up of a chain of more than one thousand islands.

a) make c) is making

b) is made d) makes

13. Japan______from Korea by the Sea of Japan.

a) is separated c) separated

b) separates d) is separating

14. Japan has a large number of volcanoes, sixty-seven of which______active.

a) consider c) were considered

b) considered d) are considered

15. Now girls are not embarrassed______smoking.

a) to see c) to be seen

b) seeing d) have been seen

16. Research devoted to the differences between men and women______discouraged by feminists for a long time.

a) are b) have been

с) has been d) were

17. Feminists feared that such research______to justify sex discrimination.

a) may be used c) can be used

b) might be used d) should be used

18. An area of rainforest the size of Austria______every year.

a) is being destroyed c) destroyed

b) destroys d) destroying

19. Who knows what as yet undiscovered weapons against cancer or AIDS ______ by the destruction of the rainforests?

a) ruin c) are ruined

b) ruined d) are being ruined

20. Do you know how many paintings______by vandals?

a) are destroyed c) have been destroyed

b) are being destroyed d) are destroying

21. Suddenly he thought that something______of him.

a) expected c) is expected

b) was expected d) has been expected

22. A lot of jazz festivals______every year in America.

a) are held c) are holding

b) hold d) held

23. Scotland ______ from London but in many ways it is a separate nation.

a) governed c) is governing

b) was governed d) is governed

24. The Highlands are home to many rare birds and animals, which______nowhere else in Britain.

a) are found c) weren't found

b) aren't found d) cannot be found

25. A seat belt______even if you are sitting in the back seat.

a) must wear c) must be worn

b) wore d) must be wearing

Lesson 8 Biochemistry –science about transformations of substances