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

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

there were five studenst in the classroom just now 改为一般疑问句和否定句
How many students were there in the classroom just now?
there were no students in the classroom just now.

There were not five students in the classroom just now.
Were there five students in the classroom just now?

一般疑问句：
Were there five students in the classroom just now?
否定句：
There weren't five students in the classroom just now.

Were there five students in the classroom just now?
There were not five students in the classroom just now.