Réponse :
1) I dont need to go home yet. I can stay a little longer.
2) We have a lot of time. We don't need to hurry.
3) Keep these papers in a safe place. You mustn't lose them.
4) Im not ready yet, buut you don't need to wait for me. You can go now and I'll come later.
5) We mustn't forget to turn off the lights before we leave.
6) I must contact David, but I don't need to phone him. I can send him an email.
Explications :
