Задание №33109 ЕГЭ Английский язык

5. Вы услышите репортаж дважды. Выберите правильный ответ 1, 2 или 3.

What did Stan and his partner try to achieve with their experiments?

1) The creation of new types of speakers.

2) The proper application of old-fashioned objects.

3) The effect of producing sound images.