Why ask him, of all people?

干吗偏问他？

《新英汉大辞典》

Why ask him to go of all people?

为什么不叫别人而偏偏叫他去？

youdao

Why don't you ask him outright if it's true?

你为什么不直截了当地问他那是否属实？

《牛津词典》

Why, let's okay-- let's ask him a different interview question.

为何，好了--我们问他一个与众不同的,面试问题。

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Niederauer says outsiders ask him why Goldman is in such a hurry to overhaul itself.

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I've been paying him patiently for 23 years, and now I finally ask him why it's still not working.

BBC: Bulgaria cabinet faces tough task of tackling poverty

Karar tells me all of this in a very matter-of-fact way, and I ask him why he seems so unaffected by it.

CNN: War-scarred Baghdad places little faith in U.S. election