217、Search engine

53、If I had stayed in business, I () be a really wealthy man today.

52、take apart是

51、catering business是.

50、My first real long-term job, though,

49、首席执行官是

48、To local historians,

47、When talking about symbols of American culture?

46、turn () do be

45、keep ()

44、urge () to do sth