英语翻译became可以改成become吗?为什么?

英语翻译became可以改成become吗?为什么? 是have become还是 have became 为什么是have become 而不是have became? by the time the earthquake ended,millions of people had become homeless.为什么加had?直接became可以吗？ had become 和 had became 的区别?还是没有had became,只有had become 和 became 这两种说法呢? “get adj.”变得怎样怎样可以改成“become adj.”吗?为什么? 英语翻译Ms.Mbogo suddenly became a symbol of the increasingly powerful political force women have become in Kenya and across Africa 英文became,become ,becomes有什么区别?怎么用法? 英语翻译英语翻译“我姑姑今年变胖了”应该说是：My aunt become fat this year.还是：My aunt became fat this year.两句话的区别是：become（现在用法）became（过去用法）哪句话才是对的? Nowadays(overpopulation)has become a problem we have to face 中become是不是应该用became 不是过去时吗 为什么是become 不是 became?When did you become a housewife? How did he become an actor?这句中become为什么不是became? 英语翻译to become 成为 E-books （ ）very popular since they came into being A become B have become C had become D became soon you [ ]a senior high school student.isn't it exciting!a become bwill become c became d have become. honour 语法分析it is a great honour that my brother became a volunteer 有无语法错误打错了应该是it was a great honour that my brother became a volunteer 有无语法错误呢改成it was a honour that my brother had become a volunteer become sick,become后可以接形容词? it is four years since i an english teachera become b became c becomes d have became说下为什么