Read the dialogue. Choose the correct option in each case.

Ann: Hi! What are you doing tonight? ...
Andy: Nothing special. Why?
Ann: I`m going to a concert tonight. ... And I have an extra ticket. Will you join me? ...
Andy: That sounds great! When does the concert start? ...
Ann: It starts at 8 p.m. ...
Andy: I’d love to, but I can’t. I’m helping my dad with his car this evening. ... I promise, I will join you next time! ... Look at the clouds! It's going to rain! ...
Ann: Thanks! I'll take my umbrella. ...