Відповідь:

1 - on

2 - between

3 - flag

4 - an invitation

5 - congratulations!

6 - save

7 - having

8 - is there

9 - an

10 - a

11 - him

12 - mustn*t

13 - must

14 - a

15 - some

16 - any

17 - how many

18 - how many

19 - in

20 - on

21 - is watching

22 - buys

23 - doesn*t wear

24 - get

25 - are not (...) they are playing football

26 - because