答案解析：
1. A. 从文章最后一段 “It really means that you have to do something...because you know you have no choice.”可以得到答案。
2. A. 从If...下文得知只有考试没考好才会有那样的结果。
3. D. 最后一段提到“...is well known to every American, young or old.”。
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