though I am not a native english speaker, i doubt you would say i WAS TO France during two months, which is the answer DUO gave me. It should be I HAVE BEEN IN FRANCE......
"I have been in France for two months" is correct if you are still in France; "I was in France for two months" is correct if you have left.
now I say that HERE the translation is given as I WAS IN..... why then does DUO give TWO different translations, one of them clearly wrong ?????