1. Use the modal verbs must (должен), can (могу, умею), may (можно, разрешено), should (следует /совет/), ought to (следует /упрек/) to complete the sentences. There may be more than one possible answer. 1. It’s too far to walk from here to the station.. You ... take a taxi. 2. Sarah got the job because she ... speak five languages. 3. The windows are dirty. I ... clean them. 4. You ... use a dictionary. 5. I like this hotel room. You ... see the lake from the window. 6. It’s a good film. You ... see it. 7. He ... take my book. 8. We ... go to the bank today. We have no money. 9. When you are driving, you…wear a seat belt. 10. We…see the lake from our window. 11. If you have time, you ... visit the museum. It’s very interesting. 12. I ... come and see you tomorrow. 13. She ... use this "computer program. 14. Your salary is very low. You ... look for another job. 15. Mary is a very interesting person. You ... meet her. 16. Take an umbrella with you when you go out. It ... rain later. 17. Sandra ... drive but she hasn’t got a car. 18. Tomorrow the game is very important for us. We ... win. 19. Students ... bring textbooks into the examination room. 20. It’s late and you’re very tired. You ... go to bed.

Alot of factories produce waste and is drained into rivers. so the water in the rivers becomes poisoned. the hole in the ozone layer is very dangerous to humans: ultraviolet radiation passes through them and reaches the ground. such radiation may cause dangerous diseases. the population of many countries is suffering from lack of water. nuclear weapons can produce terrible destruction on our planet. nuclear power plants are not so “clean” as some believe: they become the source of the contamination. the environment is everything you see around you. today people understand the need to keep it clean, if humanity wants to survive.

Time management is the act or process of exercising conscious control over the amount of time spent on specific activities, especially to increase efficiency or productivity. time management may be aided by a range of skills, tools, and techniques used to manage time when accomplishing specific tasks, projects and goals. this set encompasses a wide scope of activities, and these include planning, allocating, setting goals, delegation, analysis of time spent, monitoring, organizing, scheduling, and prioritizing. initially, time management referred to just business or work activities, but eventually the term broadened to include personal activities as well. a time management system is a designed combination of processes, tools, techniques, and methods. usually time management is a necessity in any project development as it determines the project completion time and scope. time management strategies are often associated with the recommendation to set personal goals. these goals are recorded and may be broken down into a project, an action plan, or a simple task list. for individual tasks or for goals, an importance rating may be established, deadlines may be set, and priorities assigned. this process results in a plan with a task list or a schedule or calendar of activities. authors may recommend a daily, weekly, monthly or other planning periods associated with different scope of planning or review. this is done in various ways, as follows. time management also covers how to eliminate tasks that don't provide the individual or organization value.