We may pack our school bags before we leave our classroom.(改

We may pack our school bags before we leave our classroom.(改 We ____(clean)our classroom before we leave school this afte We c_____ our classroom after school. we must（）our school bags to school怎么填 clean,classroom,are,we,going,to,our,school,afterl,. we must keep our classroom clean改被动语态 we must keep our classroom( ). we clean our classroom every We like （our school) 1.May we leave the classroom now? Let's go into the libray ( ) right.But ( ) we leave our bags we did our homework the day before yesterday.(改疑问句)