Помогите с английским плиз:Выберите правильный вариант ответа из 2-ух предложенных.a) -

Помогите с английским плиз:
Изберите верный вариант ответа из 2-ух предложенных.
a) - Id like to invite you to lunch on Saturday night.
- Oh, thank you very much/ what time will it finish?
b) Were having a little party at the weekend. Can you and your wife come?
- That sounds nice. Thank you/ I dont know.
c) - How about a game of tennis at the weekend?
- I cant Im busy/ Id like to but Im afraid Im busy all the weekend.
d) I have to cancel lunch tomorrow. Can we fix another time?
- Lets do something next week/ No, thanks