Поставьте следующий предложения в прошедшее и будущее время группьі…

1. It isn't dark yet. It wasn't dark yet. It won't be dark yet. It isn't too late to ring him up yet. It wasn't too late to ring him up yet. It won't be too late to ring him up yet. 3. Is it warm there? Was it warm there? Will it be warm there?