These books are new 怎么改为单数形式急!

are these new books her?改错题 these are new books.改为单数形式 These books are new 怎么改为单数形式急! These are our new books.变成一般疑问句 Are these new books her错在哪? These boys' books are new. 还是These boy's books are new.哪种说法正确?请帮忙一下,谢谢! -whose are these new books.are these[ ][you]books,millie.-no,[ ][they]aren't.用合适的代词填空 These are ()() my books. Are these books ( )(your)? These books are _____. Each year a lot of new books like these are written 英语翻译 Are these books all yours? 改错：These are ours books These are the__(students)books John,are these books----(your) These are ( )(她的)books Are these students' books?对错 These books are distributed freely.