Modal verbs of possibility grado 9

Activity 
: I’m going to do bungee-jumping next week 

B: Mum, you are 80!! You  be mad. You  be serious

A: No, I’ve always wanted to do it. It be amazing to fall from a height

B: But anything  happen. We  see you again because you have a terrible accident

A: I know it is very safe! It  be as dangerous. My friend Fred has already done it. And he is older than me

B: His heart  be in a really good condition. But your heart  be as healthy as you think

A: It is very healthy.. doctors told me. I know something  happen but your life be much fun if you never try it. You  try it. You like it!!

B: Mum!!!!!!