Поставить Present perfect или Present perfect continuous 13. That boy (eat) seven ice-creams.

14. That helicopter (fly) round the house for the last hour; do you think it’s taking photographs?

15. We (walk) ten kilometers.

16. We (walk) for three hours.

17. I (work) for him for ten years and he never once say “Good morning” to me.

18. The radio (play) since 7 a.m. I wish someone would turn it off.

19. He (study) English for two years and doesn’t even know the alphabet yet.