Yeah, there are surely some mistakes here. "Di" doesn't appear but should be top ten, and there's no way "negozio" is up there. Still enjoyed it though.
there are lots of absurdities: nonna (grandmother) is in the list, but not mamma (Mother) or papà (father). There aren't the articles except il (that mean: lo, la, le, gli, etc.), there aren't lots of proposition italians use continuously (di, da, su, in, fra, tra). Negozio in the 4th position means that italian speak more about shopping than about family (that's impossible).
In conclusion: a totally failed quiz