Indefinite articles angielski ćwiczenia

Wpisz brakujące articles 'a' lub 'an'.
1. I have book.
2. I have bought house.
3. Yesterday I met friend.
4. elephant is heavy. (i.e. "any elephant" or "all elephants")
5. Ernest Hemingway was writer.
6. Isaac Newton became great scientist.
7. What nice day!
8. What charming person!
9. I have few friends. ("several friends")
10. I have little fortune. ("some money")