Вопрос по английскому языку:

Вставьте вместо цифр слова: (top-ups, landline, contract ,number)
Текст:
In many countries, the process of buying a mobile phone is straightforward: you choose the phone and the provider you want, you are then given a (1) . Italy is one exception, where you will need your national ID card and your tax code. When you don’t know how long you are planning to live in the country, many people choose prepaid packages that allow (2) . This means you can cut off the service when you want without worrying about being tied into a (3) . These days many providers also offer wireless Internet access meaning you won’t need to have a (4) put into your flat or apartment.