these book is yours（这本书是你的）为什么最后用yours不用your

This book is yours these book is yours（这本书是你的）为什么最后用yours不用your This is ( ) book.your|yours The second______( book ) is yours. That book is yours为什么用yours不用your, Among these books,I like ( )is yours. This book is ( )? 填Your还是Yours? 中文意思：that book is yours. Which book is t______,yours or mine? This book is yours ,（ 反意疑问句. [ ]Are these ________?A,yours books B,books thrirs C,book his D,his book These are( ) 我们的 book andThese are( ) 我们的 book and those are yours. this book isn't ().() book is over there.A.your,your B.yours,your C.yours,yours Whice book is yours ,Simon The new one is ________. 1.these are _____book (my,mine) 2.these book are ____(your,yours) 3.____(he,his)name is lily4.___(he,his)is a boy5.____are red apples (this,these)6.___are your pictures (that,those)7.this is my pencils that is ____(your ,yours) Amy goes to work (at six o'clock) (These) book is yours. Five and six (gets eleven)Jimmy is late for school (because he's ill)快!今天作业,跪求问题补充： Amy goes to work (at six o'clock)(These) book is yours.Five and six (gets eleven)各 Is this book yours No,it b____ to Daniel Maybe the book is yours的同义句