This is an egg (改为复数形式）

This is an egg (改为复数形式） That is an egg 改为复数句 this egg is big 改为复数 Is this an egg? 改为复数形式 Is that an English book?Whats this in English?It is an egg.She is a teacher. This is an orange改为复数句 this is an elephant改为复数 This is an orange.改为复数句. This is an orange改为复数句 this is an elephant改为复数. This is an orange .[改为复数句] This is an English(改为复数句) This is an arm.改为复数形式 This is ----- egg.can Ieat------ egg?an,an an,the is this an apple an orange__an egg what is this in English?It's an egg.改成复数句 That is an egg (改为否定句) Does he have an egg 怎么改为复数句