What`s this?回答是This is a chair.还是It`s a pencil.This is和It`s有区别吗?不就是一个是这是个椅子.另一个是“它是个铅笔.”为何我选后面的错了?

what s this回答 what’s this 怎么回答? What's this回答问题 what's this?回答是既可用It's a...还可用This is a... 问What's this?怎么回答 What's this?用怎么英文回答 what’s this (回答)( )( )a book What's this?(一双袜子）回答 what's this?回答是It's N .还是It's an N .为什么? What color is this apple?回答是It's green还是It's a green apple what's this? whats this what's this是什么意思 What's this? 翻译 what’s this? this's what i what's this? what's this