Read the summary and fill in the gaps 1-6 with the sentences A-G. There is one sentence that you do not need to use.
The development of the telegraph was the first step in the communication revolution and the telegraph industry expanded rapidly in the second half of the 19th century.
Edison depended upon dozens of young inventors to build and test his ideas.
Thanks to it he was often able to see possibilities others missed because he was constantly learning.
He received his first patent on an electric vote recorder.
Although it did not get practical application for the vehicle propulsion this work paved the way for the modern alkaline battery.
It became the model for later, modern facilities such as Bell Laboratories.
He is referred to as 'the person who lit the world'.
Sorry, your results can be much better! Check if you have done the whole exercise and\or correct the mistakes.
Excellent! You have done the whole exercise correctly! You can press Try again to have another go.