Bonjour pouvez-vous m’aider svp j’ai pas compris Merci (3e)

1) The man is driving. He has been driving for 2 hours
2) The woman is playing piano. She has been playing since 10 minutes.
3) The people are camping. It has been raining for 3 days.
4) The soldiers are fighting. They have been fighting since 12 hours.
5) The man and woman are dancing. They have been dancing for 3 hours.
6) The woman is listening to music. She has been listening to music since half an hour.