52.　 Could you turn your radio down, please?

51.　 He said he thought more of a person who has one idea and makes it work, than of a person who has a thousand ideas but doesn’t do anything about them.

50.　 The boy’s father was so thankful that he taught Edison how to send message by telegraph.

49.　 It was the first newspaper sold on trains in American.

48.　 She found him to be a very good pupil.=She found he is a very good pupil.

47.　 Most of the questions had nothing to do with his lessons.

46.　 When he was a child, he was always asking questions and trying out new ideas

45.　 Tomas Edison said he liked people who had ideas/

44.　 I think if I make a pen that has a machine in it, I will be able to white faster.

43.　 In some places there are watchtowers on the beaches to tell people of sharks in the water.