1.it was dangerous because he could easily be drowned because the river was running fast.
2.he doesn't worry about the rain because he doesn't mind getting wet when he is out in his boat.
3.Because he didn't know the Wilsons very well and was shy.
4.He telephoned her to tell her that the police is evacuating the whole street because the river burst its banks.
5.if it will continue to rain their house is going to be flooded.
Sper ca te-am ajutat!