we must（）our school bags to school怎么填

we must（）our school bags to school怎么填 we must ( ) our school nuiforms ( We have to c______a lot of books in our school bags every da we must be careful on our way_________(to school,school)为什么选 We must keep our school clean. we should obey school rules,so we must keep our classmate 后填 We may pack our school bags before we leave our classroom.(改 our school life will come to an ____.怎么填? A___teachers in our school are friendly to us 怎么填 We must do our best to help the poor chilren go to school 是什 we must try to make our school beautiful为什么用to We must ( )to school at seven thirty.