How could anyone break into the palace undetected?

怎么会有人神不知、鬼不觉地潜入皇宫呢？

《牛津词典》

How could anyone find pleasure in hunting and killing this beautiful creature?

怎么会有人在猎杀这种美丽的动物中体会到快乐呢？

《柯林斯英汉双解大词典》

I found myself constantly pondering the question: "How could anyone do these things?"

我发现自己不停地思索着这个问题：“怎么会有人做出这些事情？”

《柯林斯英汉双解大词典》

How could anyone know what kind of love another person had to give?

NEWYORKER: Temporary

How could anyone insist that not paying such extra would cripple the nation and then not pay that extra voluntarily?

FORBES: A Message To The Patriotic Millionaires

How could anyone do that job when they haven't got a clue?

BBC