为什么是have become 而不是have became?
问题描述：
为什么是have become 而不是have became?
答
have become 是表现在完时,它的结够是have +动词的过去分词,而become 的过去分词还是become ,became 是它的过去式,所以不用它
为什么是have become 而不是have became?
have become 是表现在完时,它的结够是have +动词的过去分词,而become 的过去分词还是become ,became 是它的过去式,所以不用它