people need to sleep nine hours at least这句话有没有语法错误?

people need to sleep nine hours at least这句话有没有语法错误? people tend to need less sleep as they get older属于什么英语句型? young people need to sleep at least eight hours a day同义句__ young people ____ to sleep at least eight hours a day/ Our teacher asked us not to s______ up. They said young people need to sleep 要翻译哦 we need to sleep well every day. 英语翻译im going out to hang with people tomorrow!:Dso that will be good :)though i need 2 sleep in ;) 英语翻译Research shows that the amount of sleep which people need in order to keep healthy varies a lot Most people need seven to ten hours of sleep _____24 hours A：each B：every 说明原因, 一道英语完形填空题,How much sleep do you need?We are all different.Some people need only three hour's sleep a night,__1__ need ten hours of sleep a night.After age fifty,the average sleep time goes __2__ to 6.5 hours a night.Most of people h 一道英语完形填空题,How much sleep do you need?We are all different.Some people need only three hour's sleep a night,__1__ need ten hours of sleep a night.After age fifty,the average sleep time goes __2__ to 6.5 hours a night.Most of people h Everynevening we need to go to sleep.翻译 our bodies need to have enough sleep to stay healthy 阅读短文,补全单词!Sleep a lot or a little?Sleep a lot or a little?How long do people need to sleep every day?It depends a few things.It depends on a________.Babies need more sleep than adults.It depends on what you do during the day.If you do Our fat cells need sleep to function properly 求翻译 sleep debt accumulates and harms our health and we need to adopt a sleep we need to sleep eight or nine hours every night.为什么need后加to 英语翻译Babies sleep for up to eighteen hours a day.Sleep.No one can live without it.71 Research (研究) by the National Sleep Foundation in Washington says that we all need eight hours' sleep every night.Scientists have found that people who sl A goldfish dosen't need a bed （） A .sleep B.to sleep C. to sleep in D .sleep in 讲一下语法.谢谢