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最佳答案：是：Jack used to be a lively and cheerful person,but since his father died,he beca
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最佳答案：He used to be lazy.We have a library of our own.Once he was a soldier .The girl
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最佳答案：He used to be a stupid man ,but was a famous scientist later.
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最佳答案：1.My mom was afraid of darkness before.2.We once were good friends.3.He didn't l
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最佳答案：Revenge is one full of difficulties and struggles of things, Hamlet's revenge is