When you are writing a question, 為什麼 should go at the beginning, at the end or in the middle of a sentence?

Question

Answer

Generally at the beginning or after the subject.

Answer

generally at the beginning

Answer

at the beginning, 
為什麼台灣外銷的鳳梨，九成都要賣中國？
at the end 
网络文学屡次遭受严打，这到底是为什么？
or in the middle 
《金瓶梅》在文化傳統裡向被譽為四大奇書，但書名為什麼叫「金瓶梅」？

Answer

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