Read the following passage and answer the questions. Alexander Graham Bell was born in 1847 in Edinburgh, Scotland. He moved to Canada and then to the USA in the 1870s. In America, he worked with deaf-mutes at Boston University. Soon, Bell started experimenting with ways of transmitting speech over a long distance. This led to the invention of the telephone. Thomas Watson was Bell`s assistant. Bell and Watson introduced the telephone in 1876. Bell demonstrated his invention at a lot of exhibitions. He died in 1922. 1. When and where was Alexander Graham Bell born? _______________________________________ 2. What did he do when he was at Boston University? ________________________________________ 3. Who was Thomas Watson? ________________________________________ 4. What did Bell and Watson do in 1876? ______________________________________ giups em vs a e cam on mong ad duyet