Read the short text. Read and complete the sentence with the correct part. Sleep is a condition of your body and mind in which a nervous system is relatively inactive. Your eyes are closed, muscles are relaxed, and consciousness is mostly suspended for several hours. There are 24 hours in one day, there are 168 hours in a week, and there are 8,760 hours in a year. The average amount of sleep, which many people get each day, should be about 8 hours. It is one-third of a day. If you live 90 years old, you will sleep for 30 years in your life. Every living thing needs to sleep and to rest. A person should sleep ... 2920 hours in a year. 168 hours in a week. 30 years in your life. 24 hours in a day.
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Read the short text. Read and complete the sentence with the correct part.

Sleep is a condition of your body and mind in which a nervous system is relatively inactive. Your eyes are closed, muscles are relaxed, and consciousness is mostly suspended for several hours. There are 24 hours in one day, there are 168 hours in a week, and there are 8,760 hours in a year. The average amount of sleep, which many people get each day, should be about 8 hours. It is one-third of a day. If you live 90 years old, you will sleep for 30 years in your life. Every living thing needs to sleep and to rest.

A person should sleep ...

  • 2920 hours in a year.
  • 168 hours in a week.
  • 30 years in your life.
  • 24 hours in a day.

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