人类正在对我们的星球造成最大的破坏。

___Humans are causing the greatest damage to our planet today.

我最近喜欢的节目是关于鲸鱼、鲨鱼和人类的。

The programmes I've enjoyed recently were about whales, sharks and ___humans.

狗能与人类建立深厚的感情。

Dogs can form strong bonds with ___humans.