这场辩论的主题是猫对狗。

The topic of the debate is cats ___versus dogs.

该报告分析了私立教育相对于公立教育的益处。

The report analyzes the benefits of private education ___versus state education.

在他的评论中，他将《异形》与《200勇士》相比较，并更喜欢前者。

In his review, he compared "Alien" ___versus "200 Warriors" and preferred the former.