You can buy stamps at the
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at the post office.....

A. 1. you are advised to wear sensible shoes in winter. 2. the time before bed is spent very pleasantly. 3. sniffer dogs is used by police to detect drugs and explosives. 4. huge pine trees was uprooted by the storm. 5. you are not allowed to buy cigarettes if you are under sixteen. 6. toyotas is manufactured in japan. 7. this road is never cleaned. 8. gold was discovered in eastern canada. 9. when i saw him, he was being chased by a large dog. 10. several towns was destroyed by the eruption of vesuvius. 11. this coffee is just made, help yourself! 12. have you ever been   cheated? have you ever been made a fool of? 13. the mirror has been broken while it was being moved into the hall. 14. how the word "magazine" is pronounced? 15. the table is being laid now. you will be served in a few minutes. 16. for months, the baby kangaroo has been being protected, fed and tought to survive by its mother. 17. i feel that i am being watched now by somebody. 18. these t-shirts is not ironed yet. 19. love stories always are being sold well. 20. oranges and tangerines are very useful, besides, they are peeled perfectly. 21. i have been just told that my house will be knocked down next month. 22. my sweater has been washed badly so i put it into the washing-machine.b. 1. don't enter the room! a student is being examined there. 2. the event   had been reported by the newspapers before they arrived home. 3. after the accident he immediately has been taken home. 4. the letter was being typed by the typist when i came in. 5. i am sure that his work will have been completed by the end of the month. 6. some new magazines just have been brought. would you like to look them through? 7. the exercises are usually corrected by the teacher at home. 8. i can't show you my written work as it is not returned by my teacher. 9. many new houses have been built in our town lately 10. we think that the ship will be chartered next week. 11. they will pay the money as soon as the goods are delivered. 12. the goods have not been examined at the custom house yet. when have they been examined? 13. the question which is being discussed now at the conference is very important 14. this bridge was built in 1945. 15. the contract had been typed before the director comes to the office. 16. important scientific work is to carried on by that institute. 17. all the students will have been examined by 5. 18. the documents is not signed by the manager yet. they are being checked now. 19. she is frightened by a loud noise in the street