Какую массу гидроксида натрия нужно взять для реакции нейтрализации с 980г 20% раствора серной кислоты?

Вставьте артикль, где необходимо.

1. I have two ... sisters. My ... sisters are ... students. 2. We are at ... home. 3. My ... brother is not at ... home, he is at ... school. 4. My ... mother is at ... work. She is ... doctor. 5. I am not ... doctor. 6. I have no ... sister. 7. He is not ... pilot. 8. I have thirty-two ... teeth. 9. He has ... child. 10. She has two ... children. Her children are at ... school.11. Is your father at... home? — No, he is at... work.12. Where is your ... brother? — He is at ... home.