中科新闻网哈尔滨哪里好玩还便宜:英语问题
来源：百度文库 编辑：中科新闻网 时间：2024/05/12 05:54:41
1.every student should obey the s____ rules
2.paper was one of the greatest i____ in ancient china
2.paper was one of the greatest i____ in ancient china
school
inventions
school（'s）
inventions
school inventions
1.school's
2.invents 或者 inventions
1.school's
2.invents 或者 inventions