阅读表达根据课文内容完成下列各题
Why did Sam keep groaning louder and louder at night? (Answer within 5 words. )
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Which sentence in this passage is the closest in meaning to the following one?The doctor treated him in time.
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What does the underlined word “it”（Para. 2，Line 2) probably refer to? (Answer within 2 words. ) We found some medicine, got some water, and helped Sam sit up to take it, hoping this would re-duce his pain and tide over the difficult time.
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