a foreign teacher has just came to our school.为什么改为come

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a foreign teacher has just came to our school.为什么改为come
a foreign teacher has just came to our school.为什么改为come

a foreign teacher has just came to our school.为什么改为come
因为这里用的是现在完成时,构成是have/ has +动词的过去分词
come的过去式是came,但过去分词是come

come的现在完成时

come-came-come。

此处用过去分词。