that’s an appie .it 's red 的同意句 什么Apple is什么

that’s an appie .it 's red 的同意句 什么Apple is什么 变复数句It's an appleThat's a red knife Is that your bagThis is It's an appie tree(改成复数句) 英语问题1、This is an apple.And () is red. 括号里填什么,为什么?2、Er…It's j that is an red apple It is not a peach.It's an什么?A orange B apple It's an red apple错在哪? It's an apple.(改为否定句) "Is that an orange or an apple?"" " 1.Yes,it's an orange 2.N 英语：It‘s ___ red apple.中间的空填an还是填a? here's a red packet and there's lots of money in it的同意句 This is a apple.It's red错在哪里