问题补充：
Dear Xiaohua,
I’m very glad to receive your letter. From your letter I know you have shown 【小题1】 great interest in inventing new things. That’s great. As for how to be an inventor, there is no quick answer to 【小题2】.
Coming from different cultures and having different backgrounds, inventors don’t seem to have much 【小题3】 common. But creative thinking, 【小题4】 is greatly valued, is perhaps the basic skill an inventor should have. In order to explore new possibilities, you will have to learn to break【小题5】 from old thought patterns. When you get stuck, try to look at the problem in 【小题6】 many ways as possible. Each new way may improve your understanding.
More importantly, always keep it in mind 【小题7】 success is no accident. It is the result of a long process of trial and error. Above 【小题8】, the main task for you is to study hard and try to learn more knowledge. This, of course, will lay a solid foundation.
Hope your future invention will make a difference.
Good luck!
Yours,
Wang Lia
答案：
(答案→)a
解析：
【小题1】 a 固定搭配show interests in/show a great interest in…对…表示出兴趣。
【小题2】it 这里的it就是指前句的how to be an inventor。
【小题3】in 固定搭配have sth in commom有共同之处。
【小题4】 which本句是一个定语从句，which指代前面的先行词creative things在句中做主语。
【小题5】 away 固定搭配break away from…摆脱；你要学会摆脱就的思维模式。
【小题6】 as固定搭配as…as…；用尽可能多的方法来看待问题。
【小题7】 that这里的it是形式宾语，真正的宾语从句是后面的that引导的宾语从句。That在宾语从句中不充当任何成分，只起引导作用。
【小题8】 all 固定搭配。Above all首先，最重要的是。
