Come on, there are so many better sentences that could have been used to apply this word.

Yea, what a stupid question. I used to teach primary school children how to read and one of the strategies was to use clues from the words they knew to figure out the ones they didn't - making educated guesses. No educated guess would have resulted in me coming up with "honest" in this sentence.

I thought it would be: "Are you honestly learning vietnamese?" But got rejected instead... sigh

But as a matter of fact, I'm not lying while learning vietnamese... :p

Should i ?

Oh my... it make no sense: I'm struggling to find out which english translation DL would accept instead of focusing on the language I want to learn aka vietnamese... ts ts

English is not my mother tongue. Would this mean: "are you honest about studying Vietnamese?".

If not, I cannot guess what the sentence means.

A dumb question. And "Are you honest when studying Vietnamese?" is marked incorrect. Dumb question + arbitrary answer. Great.