Inmanybigcities,alotofoldpeoplekeepbirds,cats,dogsandot...
问题详情：Inmanybigcities,alotofoldpeoplekeepbirds,cats,dogsandotheranimalsintheirhouses.Theseanimalsarefriendlytotheoldpeopleandneverleavethem.Sotheoldpeoplelovethemandseethemastheirgoodfriendsorfamili...