some keys are in Classroom 7E 中为什么不加the?

There are some keys in my bag.改同义句- - some keys in the bag! are,some,keys,classroom 7,in,（连词成句） these are some keys in classroom e7改为否定句 Some keys are in classroom 7E 中的in前面Some keys are in classroom 7E 中的in前面为什么不用加the There are rome keys in my bay.（同意句） —— ——some keys in the bag. some ,are,in,keys ,my ,schoolbag(l连词成句）速度速度! some keys are in Classroom 7E 中为什么不加the? 用介词in,ar,of,for填空There are some keys _ the case Those are some keys.(改为单数） 英语翻译翻译.some keys are in classroom 7e.are they yours?e-mail me at maryg2@gfimail.com There___a ticket,a purse and some keys in the drawer A:are B:is c:have D:has 还有理由 the keys are in the bag 为什么用are keys are some classroom in the 连词成句你懂的 books these your are | call Tony 4956433 at3题 顺带句意谢谢 Here____[be]some water in the in the cup.Here____[be]an eraser.Here____[be]your picturesThanks for____[you]book.Are____[that]your keys?These are our____[watch] 人工英译汉Many teenagers have problems that worry them.Many teenagers have problems that worry them.Some do not learn their school subjects well.Some are good at learning and do well in exams,but they are doing so poorly in sports that their cla keys your in pencil case the are ?连词成句 my keys are in the backpack.一般疑问句 连词成句.her,in,keys,the,are,schoolbag,(?)