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最佳答案:think thought thoughtsit sat sittenbegin began begunrun ran run
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最佳答案:eat -eatenwash-washedjump -jumpedmake -madesit -satrun-runcry-criedemty这个次是 empt
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最佳答案:stand up--stood up--stood upgo to bed--went to bed--gone to bedget up--got up--g