there were five students in the classroom just now改为一般疑问句和否定句

there were five students in the classroom just now改为一般疑问句和否定句
there were five students in the classroom just now
改为一般疑问句和否定句

there were five students in the classroom just now改为一般疑问句和否定句
刚刚有5个学生在教室