Isn't the classroom cleaned by the students every day?如何改为主动语态?句子如题.为什么.也就是说否定的疑问的被动语态怎样改为相应的主动句.

Peter isn't running in the classroom.(祈使句) 句型转换 There isn't anybody in the classroom .(同义句) There _____________ in the classroom. there isn't anybody in the classroom.(变为同义句)there___ ___in the classroom there isn't a clock a in the classroomthere isn't a clock a in the classroom[同义句 ]there [ ] [ ] a clock a in the classroom John isn't in the classroom,he ()play soccer on the playground.A.canB.must Isn't Dick sitting in the front of the classroom?该怎么回答 He must be in the classroom ,___he?A mustn't B needn't C hasn't D isn't there isn't enough s----- for 50 desks in the classroom —Is e____ in the classroom now?—No,Wang Li isn't here. bill isn't here,he_____(chat） with his friends in the classroom Be quiet! The baby______（sleep） This isn't our classroom.It's______(they) Bill isn't here.He ______(chat)with his friends in the classroom.怎么填?为什么? The classroom is so dirty that we can't study in it.（保持原意）The classroom isn't ______ ______ for us to study in it. He isn't in the classroom .Maybe he is in the library,译为同义句,急急急急急急.He isn't in the classroom,Maybe he is in the library。这个是一句话,He isn't in the classroom不 用翻译,卷子已经写出来了,只需翻译后半句,H you should keep your classroom ____________when the teacher isn't in.a.quiet b.quietly c.quited.quitely He may be in the classroom,isn't he 这句子对吗?不对怎么改,改成must be 1.The classroom isn't busy.It's very q .2.My mother e taking a walk after supper. 1,Let' (go to) the classroom.是否正确 作语法翻译 2.Is it your bag?No,it isn't