.​ Они уже приняли решение по этому

.​ Они уже приняли решение по этому вопросу? – Нет, они все еще спорят. Они обсуждают этот вопрос уже два часа, но еще не пришли к согласию.

Results (English) 1:

.​ They had already taken a decision on this matter? -No, they still argue. They discuss the matter for two hours, but have not yet come to an agreement.

Results (English) 2:

. They have already made a decision on this issue? - No, they're still arguing. They are discussing the issue for two hours, but have not yet come to an agreement.

Results (English) 3:

.​ they have already decided on the issue? - no, they're still arguing. they are discussing this question for two hours, but have not yet reached an agreement.