题目内容：
根据材料，回答问题。 Family History
In an age when technology is developing faster than ever before, many people are being attracted to the____ (51) ____of looking back into the past. One way they can do this is by____ (52) ____their own family history. They can try to____ (53) ____out more about where their families carne from and what they did. This is now a fast-growing hobby, especially in countries____ (54) ____a fairy short history, like Australia and the United States.
It is one thing to spend some time____ (55) ____through a book on family history and to ____ (56) ____the decision to investigate your own family's past. It is quite another to____ (57) ____out the research work successfully. It is easy to set about it in a disorganised____ (58) ____and cause yourself many problems which could have been ____ (59) ____ with a little forward planning.
If your own family stories tell you. ____ (60) ____you are connected with a famous character,whether hero or criminal, do not let this idea take____ (61)____your research. Just treat it as an interesting ____ (62) ____. A simple system with collecting and storing your information will be adequate to____ (63) ____ with; a more complex one may only get in your ____ (64) ____ The most important thing, though, is to get started. Who____ (65) ____what you might find?
请在第____处填上正确答案。 A．chain
B．attention
C．idea
D．interest
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答案解析：