表达保护动物的意识 — 英语词汇题

根据中文提示补全单词，注意拼写：1. We should p______ wild animals and never hurt them.（保护）2. The panda is in d______ because its home is getting smaller.（危险）3. Animals are our f______, so please be kind to them.（朋友）4. Don't k______ animals for their fur or meat.（杀死）