ответы на сор, ! . последние без последнего ! ​

1. drink; will get
2. won't be late; gets
3. go
4. is; will have
5. wear; will look
6. buys; will wear
7. comes; comes; will phone
В данном упражнении большинство предложений в First Conditional (1 тип условного наклонения). Исходя из правила, можно легко выполнить это упражнение. If + Present Simple, Future Simple (will) (или эти части могут поменяться местами). 
Также присутствуют предложения с придаточными времени (when). После слов when, as soon as, until, after, before никогда не ставится Future Simple (will), а идет глагол в Present Simple

                                                           Диалог 1
1 pupil: What holiday do children in your country like best of all?
2 pupil: New Year, I think.  

1 pupil: Do you have any New Year traditions?
2 pupil: Yes, we do. One of them is decorating the New Year tree.  

1 pupil: Did you parents buy a New Year tree last year?
2 pupil: Yes, they did. And we were decorating is together all evening. And did you have a New Year party at school last year?  

1 pupil: We had a Christmas party. It was a wonderful party. We were dancing all evening.      

Диалог 2

1 pupil: What holiday is your number one spring holiday?
2 pupil:  I like Easter best 

1 pupil: Do you have any Easter traditions?
2 pupil: Yes, we do. One of them is colouring eggs.  

1 pupil: Did you help your mum to colour eggs last year?
2 pupil: Yes , I did. we were doing it together all evening. And did your parents hide chocolate eggs in the yard last Easter?  

1 pupil: Yes, they did. my sister and I were looking for them all morning.