"Yesterday the birds cleaned the floor."
Translation:Ayer los pájaros limpiaron el piso.
This is really something I could not have expected! Here, by introducing the past tense, someone has got a marvelous idea to make it all a fairy tale. OK. It's just that I'm not 5, I'm 71 , I'm not native English nor Spanish, so there's enough fairies to me. I think this sort of change suits for schoolchildren, but not for adults, who would seriously like to learn Spanish. I feel like DL is getting funny with me, and I don't like it!