Нужно заполнить пропуски (либо the, либо a/an, либо ничего)+ подписать, что это за…

Нужно заполнить пропуски (либо the, либо a/an, либо ничего)+ подписать, что это за правило. Например. We go to the Alps every year. (горнаяцепь) 1. You are in … army now! 2. Yesterday I met … girl… . girl was beautiful! 3. They are … students.4. A lot of sharks inhabit … Indian Ocean.5. I am … teacher.6. I have … apple.7. I have … pens.8… . Pushkin is … poet.9. Pushkin is … poet, who wrote “Eugene Onegin” .10. Clean … car.11… . Moon was so big.12… . Moscow is … capital of Russia.13. Open … window, please.14… . Baikal is … deepest lake on … Earth.15. Jane sent me … letter.16. There is … kitten in the box.17. He is … my best friend.18. What … nice day! 19. We go to … theatre every month.20. She is … old woman.21. I come from … USA.22. I would like to go to … Maldives.23. He is … best student in our class.24. This is the 5th time I’ve met him.25. We should respect the memory of … dead.