giải hộ em câu 5 với ạ Graham Bell was born in Scotland in 1847, but when he was twenty-three, he moved with his parents to Canada. At the end of the year, he left his family and went to Boston. Though Bell was a dreamer, he was also a practical thinker and a man of action. At Boston University, he worked as a teacher of the deaf - mutes, he started experimenting with ways of transmitting speech over a long distance. This led to the invention of the telephone. a/ Graham Bell was born in England. ___________ b/ Graham Bell went to Boston with his family. ___________ c/ He emigrated to Canada when he was 21. ___________ d/ Bell invented the telephone. ___________