They woke up,finding everything around changed./They woke up to find everything around changing./They woke up,only to fi

问题描述:

They woke up,finding everything around changed./They woke up to find everything around changing./They woke up,only to find everything around changed.这三个句子有何区别?

他们醒来后,发现周围的一切都改变了.
他们醒来时发现周围的一切变化.
他们醒来的时候,才发现周围的一切变化
翻译过来就很清楚了