材料一：“己所不欲，勿施于人。”“知之为知之，不知为不知，是知也。”“温故而知新，可以为师矣。”
材料二：某初中一（8）班新学期刚刚开学，班中屡次出现乱扔纸屑、破坏公物的现象。为此班委召开紧急会议，但大家意见不统一而争论了起来：
班长：“一定要严厉惩罚，罚值日，实在不行，一次罚5元”
劳动委员：“还是说服教育吧，一次不行就两次，两次不行就三次，相信他们会改的”。
生活委员：“随他们去吧，扔几张废纸而已，无所谓的事，根本不用管”。
请回答：
It was Children's Day yesterday, we 1the park. Our teacher was 2us.
3 many people there. Some Young Pioneers (少先队员)4 near the river.
5 sang and danced. There were some6 on the river. There was a hill
7. Some boys8 in the river. We sat under 9 apple tree with our teacher. We 10on Children's Day yesterday.
1克药放入99克水中，药占药水的（ ）
适宜生活在大气圈的生物（ ）
