Помогите пожалуйста решить упражнение
4. Make a sentence. Use Present Perfect.
Model: I'm tired. (I / walk / miles) – I've walked miles.
1. Emma's computer is working now. (she / repair / it)
2. It's cooler in here now. (I / open / the window)
3. The visitors are here at last. (they / arrive)
4. Mark's car isn't blocking us in now. (he / move / it)
5. We haven't got any new videos. (we / watch / all these)