These aren't your cards.They are theirs.为什么填theirs,不是动宾吗(⊙_⊙)?

these aren't your invitation cards.they are ____(they) those are your books ,_____?a aren't you b aren't they c aren't these d aren't those Are these cards?NO,they aren't cardsAre these( ) cards?NO,they aren't( )cards.A your,your B your,my C my,my D mine,your Are these your rulers?No,they aren't.They are noAre these your rulers?No,they aren't.They are not_____.选择：mine her yours hers your 适当形式填空：These aren't your cards .They are[ ](t适当形式填空：These aren't your cards .They are[ ](they) are these your english books A.yes ,it is B.no ,we aren't C.no ,they aren't. --Are those your your dictionaries?--_______A.Yes.these are B.NO,these aren't C.No,they aren't D.Yes,it is 为什么？ These are your books,aren’t they?怎么回答肯定和否定 these aren't your books.they are (o )books.根据所给首字母填空 These aren't your cards. They are ( )(they).用所给词的正确形式填空. Is （ ）photo of your parents?No,（ ）a this it isn't b these they aren't c they,they aren't These aren’t erasers.（单数） these questions aren't easy _____(answer) these aren't interesting hobbies.(单数) Are these your rulers?No,they aren't.They are noAre these your rulers?No,they aren't.They are not_____.Look,Jane is overthere.Ask________.Maybe they are______.选择：mine her yours hers your are these your english books?no,( )aren't .i thank they're( )books.are these your english books?no,( )aren't .i thank they're( )books.怎么填,并说明理由问题补充：C.they their D.they them are these your english books?no,( )aren't .i thank they're( )books.are these your english books?no,( )aren't .i thank they're( )books.怎么填,并说明理由C.they their D.they them are these apples 的否定回答是no,they aren't还是no,these aren't.