Помогите пожалуйста!
Вставьте артикль,где необходимо и обьясните почему?
1.This is ... book.
2. ... book is interesting.
3. ... sun is shining brightly.
4. She gets up at ... guarter past eight.
5. ... United States of America
6. ... Ukraine
7. ... Crimea
8. It`s ... high time to go home.

1.This is a book.2. The book is interesting.3. The sun is shining brightly.4. She gets up at a quarter past eight.5. The United States of America6. - Ukraine7. the Crimea8. It`s - high time to go home.