请据图示作答：

Don't go to school ___________ breakfast. It's a bad habit. 

实验室用的药品有的有毒，有的有腐蚀性．为了安全在实验室使用药品时应做到“三不”：不能 ____，不要 ____，更不能 ____．

阅读理解。   

     My name is Xiaoming. I get up at half past six. I have breakfast at seven o'clock. I go to school at eight o'clock. I have lunch at twelve o'clock. I go home at four o'clock. I have dinner at five o'clock. I watch TV at half past six. I do my homework at seven o;clock. I go to bed at nine o'clock.

河北古称“燕赵”，山东则称“齐鲁”，湖北被称为“荆楚”，这些名称的历史渊源最早可上溯到（  ）