This one got me. I typed my family live in a big city and was marked wrong?
I'm pretty sure as an English speaker that i'm right. My family is "they" and they live (not they lives). Maybe if it was my uncle lives, that would be correct as (he lives)
Lives should only be for he and she.
Perhaps its an error or hasn't been added.
That seems a little unfair to me - England (which incorporates cities much less freely than the US does) has no towns larger than Gothenburg or Malmo; I believe the largest is Reading, which would be the fourth largest town or city in Wikipedia's list of towns and cities in Sweden, were it actually in Sweden.