. Write 2 sentences with should (advise) and 2 sentences with need (necessary) and 2 sentences with must (obligation and duty). Example: You should be at school on time.
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Example: You need to be polite with your classmates.
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Example: You must wear uniform at school.
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1.We (travel) around Europe every year. 2. My father knows so much because he (has travelled) a lot. 3. I (have seen) Pete today. 4. She (watches) this series every Sunday. 5. Alex has just (met) his friend. 6. I have just (met) our teacher. 7. The children have already (decided) what to do with the books. 8. Every weekend they (help) their grandmother. 9. Helen speaks French so well because she (lives) in France. 10. She (has lived) there this year. 11. The rain (has stopped) and the sun is shining in the sky again. 12. Mary (has bought) a new hat. 13. I (buy) a pair of gloves every winter. 14. The wind (has blown) off the man's hat, and he cannot catch it. 15. The weather (has changed), and we can go for a walk.

Задайте разделительные вопросы к следующим предложениям.
1. Perishable goods should be carried in refrigerator cars, shouldn't they ?
2. The automatic train control facilitates the work of a locomotive driver, doesn't it ?
3. George Stephenson built the world's first public railways: the Stockton and Darlington railway in 1825 and the Liverpool-Manchester railway in 1830, didn't he ?
4. An impact-resistant windscreen will reduce the risk of injury to the driver in case of any accident, will not it ?
5. The construction of new railway lines is always preceded by long and thorough
surveying work, isn't it ?
6. Long-welded rails have been used on main railways since 1960s, haven't they ?