Why did you keep looking back as you went Are you afraid of_____A followed B following C being followed D been followed

Why keep you head since you didn`t love me.why did you keep me waiting for a long time why did you miss Why did you leave why did not you why are you keep silence? did you keep say that? Did I keep you up? why did you keep your brother___(wait)for a long time yesterday为什么填waiting不是keep sb do sth?有没有keep sb do sth 这一说？ why did you tdlk like Why did you leave me why did you say goodbye why did you let it why did you do it Why did you do it? shag you on the loo! 是keep you update 还是keep you updated 呢,why? 为什么keep有让的意思呢?比如：Why did you keep me waiting for twenty minutes?为什么你让我等了二十分钟?