英语中用WHY提问的句子,回答时一定用because吗

问题描述:

英语中用WHY提问的句子,回答时一定用because吗

正规的说,是的.
但用于口语中则未必:
Why are you doing this to me?你怎么这么对待我呢?
I didn't mean to,sorry.对不起,我不是有意的.
(Because) I wanted to hurt you.我想打击你.