1 - d (Are you - busy next Tuesday?)
2 - f (I've got tickets - for a football match)
3 - a (Would you - like to come?)
4 - c (That sounds - great)
5 - g (I'd - love to come)
6 - b (What time - does it start?)
7 - h (Where shall - we meet?)
8 - e (Let's meet at five - o'clock at my house)