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During the day we work and （1）p___ .At night we sleep.Our bodies （2）r____ when we sleep.In the morning we are （3）r____ to work and play again.Our bodies （4）g___ the most quickly when we sleep.Children who are tired need more （5）s____.We feel better and study （6）b____ when we have a good rest.Boys and girls who are eight or nine （7）y____ old need ten hours of sleep every （8）n____.Boys and girls who （9）w____ to grow fast and be strong must get lots of （10）s____.
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