15. Everyone should earnestly perform their duties.
16. Will he not 17. Rich, 18. But some remote mountainous areas of funded the children to school.
19. The horse by training after run faster than before.
20. The decision, when she was working personnel (staff) are very popular.
21. Experts specifically emphasized the importance of protecting the environment.
22. They because of misunderstanding disrupted friendship. 23.
24. Computer in medical research plays a more and more important role.