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乐观与悲观主题词汇 — 英语填空题

教科版·英语 Unit 9 Optimism and Pessimism AI 三重审校通过

题目
根据句意及首字母提示补全单词:Although Tom failed the exam again, he never loses hope and stays o________ about the future. However, his cousin always sees the bad side of everything and is quite p________.