C. Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给）:（14分）

　　Everyone needs sleep. In fact, all living things need sleep. Having a sound and good rest m___86___ us healthy. It is believed that our brain develops best during sleep. It helps all our systems work well w___87___ we are awake. Sleep allows our brain to reorganize all events during the day and will improve our memory development.

　　For a student, eight to ten hours of sleep is required to give him or her e___88___ for the following day. A good sleep allows them to grow physically and mentally (心理上).

　　With e___89___ sleep at night, students would be able to wake up early and be ready for school activities. They will be able to listen carefully in class and would have the ability to memorize the things that they learn and r___90___ them in the future.

　　Eight hours of sleep makes students active t___91___ the whole day at school. They would be able to perform well in class, take down notes and finish their homework. When they have slept well, they can e___92___ understand their lessons. Good sleep prepares them well for the challenges (挑战) at school, from paperwork to sports. They will be ready to solve difficult tasks that require mental ability and skills.