他沦为了一群伪装成市政官员的罪犯的牺牲品。

He ___fell ___prey ___to a gang of criminals pretending to be city officials.

缺乏经验的年轻人很容易被善于操纵的成年人所欺骗。

Inexperienced young people can easily ___fall ___prey ___to manipulative adults.

许多人都成为了复杂网络诈骗的受害者。

Many people have ___fallen ___prey ___to sophisticated online scams.