题目内容：

阅读短文根据上下文和首字母提示补全单词，必要时进行词形变化。

One day a rich man met Tom. The rich man asked,“I hear you are very clever and n ______1.is difficult for you. Can you tell me why you are so clever?” Tom answered with a s _________2., “Oh, I am not clever. Instead, you are too foolish(愚蠢的).” The rich man became u________3..  Tom said, “Sir, please don’t be unhappy. If you don’t agree with what I said, now let me a     4.you a very easy question: If you have a group of s________5. I send you another group. Then, you say, how many groups of sheep do you have?”“Why! That’s the easiest question in the world. One and one is two. Anyone knows that. I have two groups of sheep, of c_______6.”   Tom laughed and laughed and said, “You are quite w      7., sir. Two groups of sheep put together is still one group. That’s the e_______8. question in the world, isn’t it? When the rich man h_______9.the boy’s words, his face turned r_________10.and felt very sorry about that.