"Chi era quello che arrivava con tanti fiori?"

Translation: Who was the one arriving with so many flowers?

[J.Franchomme]

I think that Duolingo could accept that:

• "Who was the one who arrived with so many flowers?"

[oravannahka]

Yes... I remember using the same phrase.

[eli603767]

Why is "Who was the one that arrived with many flowers?" not acceptable?

[SchubertNo21]

In everyday Anglo English this would be translated as, 'Who came with (or brought) so many flowers.'