Exercise 5.Fill in: have gone/ has gone, have been / has been.
1 I … …. to Russia twice.
2 We …. …… to Britain.
3 Where …… my dog ….?
4 He …. never ….. to The USA.

1. has been
2. have gone
3. has gone
4. has been

Есть несколько, насчет которых не уверена.  1. where was the game  rugby invented? 2. how many acrobatic schools are there  in uzao? 3. when does the training start? 4. how will his skills help him? 5. how many school subjects are there  in the schools? 6. what school subjects are there  in school of holden?   7. when do school lessons start in school in nepal? 8. why? 9. how much time do students spend in japan to reach the school? 10. what is  the average duration of the school day in great britain and usa? (не уверена) 11. what is  the average duration of the school day for students of the  secondary school? (не уверена)12. what do students (pupils) of  korea and  greece visit after school? 13.   when does  ji kim return home? 14. what happens if he doesn't study hard? 15.  in which college   the rules are very severe? (не совсем уверена) 16. what form do the student wear? 17.   what is eaton? (итон? ) 18. what do student have to do before going home? 19.   what can the students do in the school summerhill? 20. how many children do not have school to study? (более правильное, только смысл "чтобы в них учиться")  /  how many children do not have school to go there?