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 do not 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 【小题7】may improve your understanding.
More importantly, always keep it in your mind 【小题8】success is no accident. It is the result of a long process of trial and error. Above all, 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
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