在漫长的演讲中，我的注意力开始分散。

During the long presentation, my ___attention began to ___wander.

她的思绪经常在课堂上飘走，想着即将到来的假期。

Her ___thoughts often ___wander during class, thinking about the upcoming holiday.

如果你开车时走神，可能会很危险。

If your ___mind ___wanders while driving, it can be dangerous.