圈出不同类的单词,(1)ruler tea pencil eraser book

圈出不同类的单词,(1)ruler tea pencil eraser book Pencil eraser ruler booK哪个不同类为什么? pencil case eraser pen book ruler door window light ruler eraser pencil blackboard book bag ch this这,这个 pencil 铅笔 pen钢笔 book 书 eraser橡皮；铅笔擦；黑板擦 ruler 尺；直尺 eraser,pencil,pen,book,notebook的总概括的英语单词是什么? book ruler的同属一类的单词是什么? 剑桥少儿英语预备级怎么讲解学习用品eraser,ruler,book,pen等,采用什么有趣的游戏啊? pen钢笔 pencil铅笔 pencil-case铅笔盒 ruler尺子 book书 bag包 comic book漫 is this your pencil,eraser and ruler?这个句子对吗?是不是应该把is改成are? What can't you see in my pencil-box?A．ruler B.eraser C.penci 与book同类的单词（至少三个）快点!