blackboard复数

blackboard复数 dad,blackboard,friend的复数 blackboard Blackboard 1girl的复数形式___2teacher的复数形式___3desk的复数形式4blackboard的复数形式___ blackboard是什么意思 blackboard是什么意思 door window light ruler eraser pencil blackboard book bag chair ciassroom desk map pen ,额.很简单的单词,要单复数的拼写 变一变 Are those oranges?(改为单数句） Is___ ____orange?2.This is a blackboard(改为复数句_ _ _ ___the blackboard,please. Look at the blackboard clean the blackboard blackboard的意思 blackboard什么意思 blackboard是啥? cleaning blackboard是什么意思? blackboard什么意思 Blackboard求中文