当她问我他的名字时，我的大脑一片空白。

When she asked me his name, my mind just ___went ___blank.

我的大脑一片空白，我说不出话来。

My mind ___went ___blank, I couldn't utter a word.

演示期间，他的大脑一片空白，他失去了思路。

During the presentation, his mind ___went ___blank and he lost his train of thought.