By the end of 1931, the technique of dubbing ... sufficiently (perfect).
Выберите один ответ:
a. perfected
b. had been perfected
c. was perfected
Ответы
Ответ дал:
2
By the end of 1931, the technique of dubbing had been perfected sufficiently.
english09740:
Здравствуйте
Вас заинтересует
1 год назад
2 года назад
2 года назад
7 лет назад
9 лет назад