16. The children who attend that school receive a good education.
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17. The psychologists who study the nature of sleep have made important discoveries.
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18. The sunlight which comes through the window wakes me up early every morning.
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19. John Quincy Adams, who was born on July 11th 1767, was the sixth president of the United States.
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20. These are the ancient houses which were built a long time ago.
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21. The man whom we should watch carefully used to be a bank robber.
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22. There are many books which we can read for reference at our school library.
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23. The only thing that we have to remember is to obey our parents.
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24. English has an alphabet that consists of 26 letters.
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25. The books that are on that shelf are mine.
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26. How many pupils who were awarded are there in your class?
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27. The number of students who have been counted is quite high.
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28. Do you know the music which is being played on the radio?
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29. There were 20 persons who were killed in the bomb explosion last week.
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30. Are there any cars which are being repaired in the garage at the moment?
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