became
become和became有什么区别吗?
became无过去式与过去分词，became即为become的过去式与过去分词。become的用法：become用作系动词时，意思是成为，变得，表示情况的开始，发展和...
be come 和become区别
词性不同：become是原形，代表"变得"的意思；became是过去式，代表"变成了"的意思。用法各异：become适用于当前时态，适合描述"变成"的过程；became则适用于过去时态，描述...
has become?
become的动词分词就是become，became是过去式
became 的过去式和过去分词
become became become
为什么第十个用became 不用becoming?
从句缺少谓语动词，而且从句有明显的指示过去时间的明确时间状语，此时即应采用充当从句谓语成分的过去式became
became和become的区别
1、词性不同：became是过去式；become是原形。2、意思不同：became意思是“变成了”；become意思是“变得”。3、用法不同：became后跟动词不定式；become后跟形容词、过去...
become的过去式、现在分词、第三人称单数形式是什么...
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为什么这个从句的动词使用了become而不是became?
这句子有两个英语文法问题;A.“became” 而不是“become”Google “since it firstbecameavailable” 有 60,200 hits;“since it firstbecomes...