VII. Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbers blanks.

Deep sleep is important for everyone. The actual amount of sleep depends ___(1)___ your age. A young child ought to sleep ten to twelve hours, and a teenager about nine hours. Adults differ a lot in their sleeping habits. For most of them, seven to eight hours a night is ___(2)___, but some sleep longer, while others manage with only four hours.

For a good night, having a comfortable ___(3)___ to sleep is very important. Also, there should be ___(4)___ of fresh air in the room. A warm drink sometimes helps people to sleep, although it is not a good idea to drink coffee immediately before going to bed.

If you have to travel a very long distance, try to go to bed earlier than usual the day before the journey. This will help you to feel more ___(5)___ when you arrive.