考研英语真题答案如下：
1. 问题：The sentence "It was not until the 20th century that people began to..." means what?
答案：人们直到20世纪才开始...
2. 问题：Which of the following words best completes the sentence "The speaker's tone is most likely..."
答案：选项C（选项C的内容需根据具体题目调整）
3. 问题：What is the main idea of the passage?
答案：文章的主要观点是...
4. 问题：According to the passage, which of the following is true about...
答案：根据文章内容，以下哪项是正确的...
5. 问题：Choose the word that best fits the blank in the following sentence.
答案：在以下句子中填入最合适的单词...
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