Are there fifty chairs in the classroom?用英语作肯定回答.

Are there fifty chairs in the classroom?用英语作肯定回答. There are some chairs in the classroom There are forty desks and chairs in the classroom. there are forty desks and chairs in the classroom There are nineteen chairs in the classroom.(改为单数) 英语连词造句twenty,there,desks and chairs,are,in the classroom Are there many books in the bookshop?作肯定回答! how many chairs are t____ in the classroom?英语填空 There is someone in the classroom.(改为一般疑问句并作肯定回答) We are in the classroom变一般疑问句 并作肯定和否定回答 英语否定句怎么改There are some chairs in the classroom变为否定句有急用,拜托拜托! 在线提问英语改句子改句：1.There are some chairs in the classroom.（否、疑、肯答