there were some computers in this room（否定句,一般疑问句及两种回答）

there were some computers in this room（否定句,一般疑问句及两种回答） l was in the room at seven o clock(否定句,一般疑问句及两种回答） mum and dad were at home（否定句,一般疑问句及两种回答） There are some notebooks in my study.的否定句、一般疑问句及简略回答? there was a picture on the wall(否定句,一般疑问句及两种回答） mum and dad were at work(否定句,一般疑问句及两种回答) There are some computers in this school改为否定句 there are some trees in the school.【变为否定句,一般疑问句并做肯定及否定回答】 There are some trees in the school.变为否定句、一般疑问句并做肯定及否定回答 急 there are some girls in the room.改为一般疑问句并作否定回答 There were some children in the park just now 变一般疑问句 并做否定回答 There were three students in the chassroom.否定句：一般疑问句：肯定,否定回答