[中翻英]他疯了吗，怎么能做那种事？

Is he crazy? How can he do that!

is he crazy to do that?

is he f*cking crazy??how can he do the f*cking thins like this...

我看是楼上的疯了。
what is he crazy? how could he do something like that?
用that而不是this,用could不是can, 因为是过去发生的。

Is he crazy? How can he do something like that?
What is he crazy? 是不对的. 那怕是错了也不是疯.