第18-22题：阅读问题并选择正确的答案。
Understand the Problem
这个问题是在要求我们阅读问题并选择正确的答案，涉及基础汉语交流。
Answer
18: E, 19: B, 20: B, 21: A, 22: C
18: E, 19: B, 20: B, 21: A, 22: C
Answer for screen readers
18: E, 19: B, 20: B, 21: A, 22: C
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These answers match the logical and relevant responses to each question.
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