It's( )eraser

It‘s an eraser. It's( )eraser --is that( )eraser?--yes,it,s( )eraser. 英语翻译 It's an eraser in English. It's an eraser.改成复数句 It's not_____eraser.It's her eraser空里填什么 Is this your eraser?---No,it isn't.I think ___.A.it her eraser B.its her eraser C.it's her eraser It's an eraser.中文怎么翻译? E-R-A-S-E-R,eraser.怎么翻译? This is（）（he）eraser.It’s not my eraser. It's an eraser in English.这句话的问句 It`s an eraser.为什么加an不加a It's her eraser 改为否定句 It‘s isn’t eraser 为什么用isn‘t 而不用not Is it( )eraser?No,it's not( ).It's( ).(you,I,he) Excuse me,is this your eraser,Eric?( )eraser on the desk?Oh,no,it's Linda's.填冠词 It is an eraser. It is an eraser? is this your eraser? ( ).it's my sharpenis this your eraser? ( ).it's my sharpener.a.no,it isn't.b.yes,it is. what is on the table?回答what is on the table?A It's an eraser B They're eraser C That's an eraser D The eraser 选哪个 为什么?如何理解提问主语?