Ответ:
1 What are you doing tonight? Are you going out?
2 Yes. I am meeting Alan. We are going to the pub.
3 I am having a party next Saturday.
4 What are we having for lunch?
5 We are having lamb.
6 The children are excited because they going to the zoo tomorrow.
7 When are you ( я не знаю ) Peter again?
8 I ( тоже хз) him tomorrow morning.
вроде правильно