Edison never (a) — to school. All education that he ever got (b) — to him by his mother. At the age of twelve, he was put to (c) — on a railway. Having a great deal to do with newspapers, he (d) — to pick up the art of (e) — and he printed a newspaper of his own named “The Weekly Herald.” One day he (f) — a station-master’s child which was nearly (g) — over by a train. The station-master out of gratitude, (h) — him how to use the telegraph. Young Edison soon (i) — great skill at the telegraph. When only twenty, Edison (j) — a new telegraph which was extremely useful.