"Ποιος είχε φύγει;"

[Glossmad]

I wonder why my translation as 'who had gone?' was marked as incorrect. 'Gone' can obviously be used adjectivally, but it is also a past participle just like 'left'.

[jaye16]

Sorry, of course, you are correct. I've added it. Thank you.

[Walt1965]

´Who had departed´ is marked wrong; should it not be correct?

[jaye16]

It has been added thank you.