This bike is yours.用theirs将句子改为选择疑问句

Is this bike yours?用your改写句子,意思不变 is this white bike yours?是什么意思? This bike is yours.用theirs将句子改为选择疑问句 what color is your ball 改为复数句 ls this bike yours ?（用your改写句子,意思不变）求助 This book is yours This pen is yours Tom,is this black bike ( )(you)?括号怎么填?your还是yours?为什么?为什么不是your？ 人教版六年级英语毕业练习试卷二． 用适当的代词填空：　　1.Are those 【 】 trousers?No,【 】aren't 【 】 .【】 are blue.(they)　　2.Tom,where's【 】bike?Is this black bike No,it isn't 【】 .(my,mine,your,yours) This dress is yours.对yours提问This dress is yours.对yours提问 Is this guitar your/yours? This is ( ) book.your|yours This is yours pen.为什么? is this new dress yours? Her bike is different to yours=Her bike __ __ __ __ __ yours My bike is similar to yours.（改为同义句）My bike ( )( )( )( )( ) yours. 用适当的代词填空：My bike is lost.Can I lend _ yours? I lost a set of keys.然后是用 Is this yours?还是Are these yours? is this watch yours?同义（ ）this （ )( )