题目内容
8.Listen to the passage and complete the following sentences(听短文,完成下列内容,每空格限填一词):21.Enough sleep helps the body and brain and略.
22.About略of middle school students don't get enough sleep according to the report.
23.For some students,they want to sleep early,but they keep worrying about their schoolwork
and can't略 quickly.
24.Experts have shown that lack of sleep for teenagers leads to.
25.It's good to sleep in a略 that is dark,quiet,and neither too warm nor too cold.
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