2) (they/know) that water (boil) at 100 degrees Celsius?
3) My parents(build) the house in 1985.
4) He(not/marry) her because she(break) up with him last year.
5) Look at her! She(sit) in the park over there.Lsn`t she wonderful?
6)(he/like) the bjjr he(borrow) yesterday?

1each student must take exams twice a year.2 they took exams in december.now her mother is preparing dinner.4 we had to get new information about this event.                                                                                                                                                                       1 the staff of internal auditors is supported by many large organizations.2 shareholders invested large sums of money in this enterprise.3 the work is carried out by a group of young specialists.4 are you satisfied with the results of the experiment?                                                                                                                                                                                                                                                                                             1 you do not have to smoke here.last summer i had to work hard.3 they will be allowed to participate in the conference.4 he can speak good english.                                                                                                                                                                                                                      

1. high - higher - the highest

2. small - smaller - the smallest

3. large - larger - the largest

4. heavy - heavier - the heaviest

5. new - newer - the newest

6. interesting - more interesting - the most interesting

7. beautiful - more beautiful - the most beautiful

8. difficult - more difficult - the most difficult

9. creative - more creative - the most creative

10. careful - more careful - the most careful

11. bad - worse - the worst

12. many - more - the most

13. good - better - the best

14. little - less - the least