为什么下面的房间用the room below 下面的表格用the below form

1。the room below = 对!(The room below is for students only)2。the below form = 不对!(口语:Please take the below form。。。/Hello,the below form is a consent of spouse form,i need to sign;Use the below form to reset your password。To reset your password,enter your email 。。。)3。the form below = 对!(Please fill out the form below。。。/Now you can embed the comment form below the blogger post。)4。below the form = 对!(Can I type anything "below the form"?/Can validation errors be displayed below the form?)