Are those books yours?(改为单数形式）

Are those books (your) where are those your books? these are (they)books.those are (your) your,are,books,those连词成句 are those your books 作否定回答 Are those your books的同义句 Whose are those books? Are those ______ books What are those?________(those)are books. Those are your books,aren't ____?(填those还是they) ---Are those your books?---Yes,___.A.it is B.th---Are those your books?---Yes,___.A.it is B.these are C.they are 单词 comic books are those? Those are your books.改为单数形式要怎么改?------your--------.是这样的回答形式。 tell meAre those your books?No,they are< >A.mine B.her C.his D.your are those your maps? are those your lambs? 1-Are these your books?-No,____ are____A.their；theyB.they;theirC.those;their Are those your books?（否定回答）回答：_____,_______ __________。三个空