please tell me (what) you would like to have your coffee---black or white?这里括号里为什么用what!能翻译下吗给我个权威答案啊！what还是how!

please tell me what ______(do) next. please tell me what are u Please tell me what to do(). please tell me what can i please tell me what can i do Please tell me what should do.Please tell me（ ）（ ）（ ）. Please tell me what's the problem.Please tell me what's the problem.Please tell me what the problem is. Please tell me what your name is 这是什么从句 please tell me what your production time is please tell me the following English is what meaning. what's this?who know please tell me please tell me what the name of this movie is. Please tell me what I should do.的 同义句 Please tell me what his job is.这句话对吗 please tell me what _ after the work _(do). please tell me what to call speed中文是什么意思 Please Tell me what's the meaning of “Hat-trick”? please tell me what do you do 改成陈述句语序 Why,what did I do wrong,please tell me