... When he was a boy at school, Edison asked a lot of questions. The teacher (a.think) he (b. be) stupid and she (c. send) him home. Edison’s mother (d. teach) her son at home and he (e.begin) to ... experiments. He (f. earn) money for his experiments by (g. garden) . Later he (h. work ) on a train and continued (i.experiment) there. Unfortunately, in one of his experiments, he (j. set) fire ... rice.3. An express train(a. travel) at 95 m.p.h on the main line from London to Manchester last night when it (b. derail) by a tree which (c. lie) on the line. Fortunately, no one (d. kill) although...