Вставьтье пропущенные слова в предложениях. Заранее спасибо. Слова: If,that, when,because. Предложения: 1) I am happy, ..I have bought a computer. 2) ...the theory has been tested,experimentally,it becomes a part of scientific knowledge. 3) ...scientific knowledge has grow and become more complicated,many new fields of science have appeared. 4) It is known, ..the telephone revolutionized communication. 5) ...people speak of modern technology,they generally mean industrial technology.
1) because
2) When
3) As
4) that
5) When