23. Paragraph 2 __________
24. Paragraph 4 __________
25. Paragraph 5 __________
26. Paragraph 6 __________
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A．Keprike’s Research Tool |
27. To get a good night's rest，people may not need to __________．
28. Long sleepers are reported to be more likely to __________．
29. One of the sleep problems is waking in the middle of the night，unable to __________．
30. One survey showed that people who habitually __________ each night have a higher risk of dying.
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A．fall asleep again． |