Whyaresomeanimalspet的精選

問題詳情：根據短文內容和所給中文提示，用單詞的正確形式完成以下短文。Whyaresomeanimalspetsandotherslunch?   Insomecountries,dogsandcatsarecommonlyconsideredaspets,whilechickens,ducks,and1  (豬)arefood...