Răspuns:
1.When your shopping, you use your smartphone to scan the electronic tag.
2.Virtual supermarkets are opening are opening in many cities around the world because it's more easier to use.
3.The benefits of virtual shopping supermarkets are that you don't need to carry shopping bags no more,you can save time,supermarkets no longer have to stock diferent products and travellers can do buy things while they wait for their trains.
