Your book is on the floor.Please (pick up them ) 前面没有说是复数啊,为啥答案要用them 而不用pick up it

is your book on the desk (陈述句) This is your book.My is on the desk. 连词成句：is book your on chair math the The book on the desk is your对the book 提问 Where is your book on snakes 代词填空 this is your book（ ）is on the desk. This book is _(I)._(your) is on the desk. the...is on your... the( )is on your( book on table is math my the the are under baseballs your sofa photos the some wall on are there is it in your bag?和这句有什么不同吗Is the book on the bag?错了 是Is the book in the bag? _____ ____ the book? The book is on the table. the english book is on the shelfthe book on the shelf is an english book 5`Your English book is 【on the desk】.(对括号部分提问） Your English book is (on the floor)对括号部分提问 Where's your English book?的答句It is on the desk . your book is on the table 这个句子可以这样写吗? 按要求补全单词：Your book is on the f______