zoo前用什么介词

前面用介词in，例如：

1、Lionesses bearing cubs in the zoo is nothing new now.狮子在动物园繁殖早已屡见不鲜了。

2、A small lion was cubbed in the zoo.一只幼狮在动物园出生了。

3、The two pandas have begun their new life in the zoo.两只大熊猫在动物园里落了户。