Word Order Topic is solved

[janiqua]

To translate 'I only swim in the sea', I put 'denizde sadece yuzerim' which was wrong.

The correct answer was 'sadece denizde yüzerim'

What's the grammar rule here that says to put the adverb at the front?

[MustafaOuz526752]

Your answer was in fact correct; you should flag it as it should be accepted. But also note the difference between those two phrases: sadece comes right before the word that it modifies—which can be a noun, adjective, adverb, or verb—and

— Sadece denizde yüzerim tells "you swim in nothing but the sea", whereas

— Denizde sadece yüzerim tells "you do nothing but swim in the sea".

[janiqua]

Thank you, that makes sense!