Odpowiedź:
2. He didn't want to help his mother to see. He wanted to help his mother to hear.
3. He didn't finish school at eighteen. He finished school at fifteen.
4. He didn't invent a 'writing' machine. He invented the telephone.
5. He didn't make a mistake reading French. He made a mistake reading German.
6. He didn't go to USA in 1877. He went to USA in 1871.
7. Bell didn't hear Watson's voice through the machine. He heard the overtones of the reed.
8. He didn't invent the telephone at 59. He invented the telephone at 29.
Wyjaśnienie:
