填空题
- A. fall asleep again
- B. become more energetic the following day
- C. sleep less than 7 hours
- D. confirm those serious consequences
- E. suffer sleep problems
- F. sleep more than 8 hours
填空题
To get a good night's rest, people may not need to______.
填空题
Long sleepers are reported to be more likely to______.
填空题
One of the sleep problems is waking in the middle of the night, unable to______.
填空题
One survey showed that people who habitually ______ each night have a higher risk of dying.