A：what's this（）?

A：what's this（）? -What's this?-It's a-------. this,is,jacket,what's,a(连词成句） What's this?（）is a photo of my famiy. what's this ----this's a book 改错 what’s this (回答)( )( )a book What's this?This is a ruler.这句有什么错误, whats this?This is a M改错 What's this?It's （ ）h.A.a B.an C.the D./ what's this?it's a chair.怎么翻译. What's this?It's a pen.(改为复数句) what's this?it's a cat变为复数句 What`s this in E( ) It`s an a ( ) what's that in English lts a bag( ) what's this?This isC( )改错 what's this?(填单词)a ruler.what's this?____a ruler.下划线填单词 What's this in English?ThisWhat's this in English?This is a key. What's this?(一双袜子）回答 what's this?