Thomas Edison was a great American inventor He was in school 32 only three months．His teacher didn't understand 33 this new pupil had so many strange questions．Most of the questions had nothing 34 with his lessons．The teacher didn't want to teach Tom 35 ．He asked Tom's mother 36 the boy home．Tom's mother taught him to read and write and she found him to be a very good pupil．He learnt very fast and became very 37 in science．When he was only ten,he built a chemistry lab for 38 ．
At the age of 12,he started 39 his own newspaper．He printed it and sold copies on the trains．It was the first newspaper 40 on trains in America．
One day in August,1862,Edison saw a little boy,41 on the railway at a station．A train was coming near quickly,and the boy was too frightened 42 ．Edison rushed out and carried the boy to 43 ．The boy's father was so thankful 44 he taught Edison how to send messages by telegraph．Edison soon became good at it and later left home to work in different 45 ．This gave him a new start in life． 46 ,he was only 16．
32．A．in B．since C．for D on
33．A．what B．why C．how D．when
34．A．to do B．do C．doing D．does
35．A．more B．no more C．any more D．any
36．A．to take B．take C．takes D．took
37．A．interesting B．interested C．interest D．interests
38．A．himself B．him C．his D．itself
39．A．writes B．wrote C．writing D．written
40．A．sold B．selling C．sells D．sell
41．A．played B．plays C．playing D．to play
42．A．to move B．moved C．moves D．moving
43．A．safe B safety C．safer D．safely
44．A．what B．which C．that D．when
45．A．city B．country C．village D．cities
46．A．At this time B．When C．At that time D．Now