1. 用方框中所给词或短语的适当形式填空。每个词或短语限用一次。

hero, invent, humorous, laugh at, copy

1. （1） Mark Twain is a American writer.
3. （2） Mickey Mouse is one of the of the cartoon stories.
5. （3） I'm afraid the other kids will me because l don't understand.
7. （4） A chef(厨师)called George Crum potato chips.
9. （5） The book sells well and reaches a number of 7 million worldwide.