Children need to sleep 9 hours a night 这句话的问句是什么

Children need to sleep 9 hours a night 这句话的问句是什么 I __ it important to sleep eight hours a night.A.need B.sure everyone need to have at least eight hours‘ sleep a night. She said she only needed four hours' sleep a night中的need是需要的 we need to sleep eight or nine hours every night.为什么need后加to people need to sleep nine hours at least这句话有没有语法错误? the students need to sleep eight hour every night这句话哪错啦? 翻译：children should have 10 hours' sleep every night i need nine hours' sleep every night.改为同义句 选择 1.It is important___eight hours a night.A:to you to sleep eight hours' sleep a night=Eight hours of sleep every night吗 lt is important to sleep eight hours a night 用中文 怎么说