X. Rewrite the sentences using Reduced Relative Clause: 1.The man who is standing there is a clown.  …………………………………………………………………………………………… 2. The envelop which lies on the table has no stamp on it.  …………………………………………………………………………………………… 3. Benzene, which was discovered by Faraday, became the starting point in the manufacture of many dyes, perfumes and explosives.  …………………………………………………………………………………………… 4. My grandmother, who is old and sick, never goes out of the house.  …………………………………………………………………………………………… 5. The student don't know how to do exercise which were given by the teacher yesterday.  …………………………………………………………………………………………… 6. The diagrams which were made by young Faraday were sent to Sir Humphry Davy at the end of 1812.  …………………………………………………………………………………………… 7. The gentleman who lives next door to me is a well-known speaker.  …………………………………………………………………………………………… 8. All the astronauts who are orbiting the earth in space capsules are weightless.  …………………………………………………………………………………………… 9. All students who don't hand in their papers will fail in the exam.  …………………………………………………………………………………………… 10. I saw many houses that were destroyed by the storm.  …………………………………………………………………………………………… 11. The street which leads to the school is very wide.  …………………………………………………………………………………………… 12. The system which is used here is very successful.  …………………………………………………………………………………………… 13. John, who teaches my son, is my neighbor.  …………………………………………………………………………………………… 14. Trains which leave from this station take an hour to get to London.  …………………………………………………………………………………………… 15. The candidates who are sitting for the exam are all from Vietnam.  …………………………………………………………………………………………… 16. We are driving on the road which was built in 1980.  …………………………………………………………………………………………… 17. Customers who complain about the service should see the manager.  …………………………………………………………………………………………… 18. The city which was destroyed during the war has now been rebuilt.  …………………………………………………………………………………………… 19. My brother, who met you yesterday, works for a big firm.  …………………………………………………………………………………………… 20. The vegetable which are sold in this shop are grown without chemicals.  ……………………………………………………………………………………………