Измените предложения сообразно моделиModel: Have you been staying here long? (for

Измените предложения сообразно модели

Model: Have you been staying here long? (for a month)

I have been staying here for a month.

Has he been talking about his plan long? (all these days)
Have children been swimming long? (for half an hour)
Has it been raining long? (for a week)
Have you been translating the article long? (for three hours)