ХЕЛП МИ. СОЧ по английскому языку.

I Мне кажется все варианты А кроме 4 (не знаю) ведь Present perfect - настоящее совершенное время, обозначает действие, которое совершено в но его результат связан с настоящим.
II
1. Has he travelled the world? He hasn’t travelled the world.
2. Has Margaret gone to Thailand? Margaret hasn’t gone to Thailand.
3. Have we seen famous sights? We havn’t seen famous sights.
4. Has she bought souvenirs for her friends and family? She hasn’t bought souvenirs for her friends and family.
5. Have students been here since 8 o’clock? Students havn’t been here since 8 o’clock.  
III Какие слова выделенные?
IV Тут могу ошибаться:
1. с возможно в
2. в точно не с
3. с
4.с
5. c точно не в
6. а
7. с
8. с точно не в
9. в
10. а
11. в
12. а
13. с
14. с
15. в

my hobby is footballbecause i play it with my friends and have funi enjoy my hobby when our team wins the matchyes, i do.i think it may be reading or playing computer gamesi watch television nearly 4 hours a dayi usually watch TV at the nighti normally watch TV with my motheri like the most watching films, but not TV programmesno, i don'ti think that are phonesyes, i doi mainly use my electronic device for educationyes, i do.yes, i doit varies on the day, but i guess i send more than 50 text messagesi prefer Vkontaktei use my mobile for plenty of things as studying or chatting etc.i like Instagram app nowi don't upload photosyes, i doi usually search information about the current lesson which i may needi comunicate with people if i have enough timeyes, i dono, i can't, because everyone can post whatever he wants on the internet, and that information might be wrong

надеюсь мои старания будут оправданы отметкой лучшего ответа хех ^-^