Inmanybigcities,alotofoldpeoplekeepbirds,cats,dogsandot...
問題詳情：Inmanybigcities,alotofoldpeoplekeepbirds,cats,dogsandotheranimalsintheirhouses.Theseanimalsarefriendlytotheoldpeopleandneverleavethem.Sotheoldpeoplelovethemandseethemastheirgoodfriendsorfamili...