单项选择题

What is the best title for the text

A．Too Much Sleep
B．It's Homework Time
C．Sleep to Succeed
D．Math Problems
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单项选择题
The underlined word boost” in the last paragraph means
A．watch
B．stop
C．lower
D．increase
单项选择题
What does your brain do while you are sleeping
A．It improves problem-solving skills and creative thinking.
B．It helps you do your best in school.
C．It helps your brain sort out information from your day.
D．It has a good rest.
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