写出下列单词的过去式和过去分词：improve describe support develop 紧急!
题目
写出下列单词的过去式和过去分词：improve describe support develop 紧急!
答案
imprvoe-improved-improved
describe-described-described
support-supported-supported
develop-developed-developed
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我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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