找错误：
1Three-year-olds is too young to dress themselves.______
2The teachers come from England .So are the students.______
根据汉语提示,完成下列句子
4.每个人一晚上至少需要8小时的睡眠
Everyone_____to have at least______ ______ ______a night.
我们今天放假一天
We ____ ____ ____ ____ today.
根据首字母和所给英语释义,填写单词
1r____:a competition in speed
2o____:to do what a law or a rulr says
3.a____:to be successful in doing or finishing something by trying hard
4.i_____:the quality of being very important
5.s____:to gain something or reach an aim.