This’s a chair .改错

This’s a chair .改错 Is this your chair?Yes,it's 改错 what's this?it's a chair.怎么翻译. What`s this?回答是This is a chair.还是It`s a pencil. what's this ----this's a book 改错 This's a music room 改错的 Is this a table?No,it isn't.What's it ( )( It's a chair. what"s this?This is a "M"改错 This is Kate,s room.You can see a desk and a chair in the ro what's this in english a.chair b.i'm bob this isn't ____ball,It's is under the chair.A.mine;he;My B.m what is this?______ a chair.