英语问题（帮忙填个词,然后说明一下,

英语问题（帮忙填个词,然后说明一下,Animals travelling from one country to another have to follow laws ,just as people do.They don't have to hold a p_____,but they have to obey other rules.Most countries have laws about animals coming into their country.The laws were made to stop the spread of diseases that animals may have.Travelling animals include cats and dogs going w_____ their masters on trip.O_____ are rare animals going to zoos.Some are birds and fish on their way to pet shops.Some animals can't go into a country unless their owners can prove that they have been vaccinated a ____ certain diseases.Others must be checked carefully by animal d____.Some animals must spend a month or more in a special place befor they can enter a country.These animals are kept away form other animals u_____ it is certain that they don't have a disease.There are many different laws in each country.Anyone who wants to take a pet to another country should check with the goverment first.Laws are made to p_____ both people and animals.