half of his books ----written in English A: are B: have 为什么不用have? 详细点

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half of his books ----written in English A: are B: have 为什么不用have? 详细点
half of his books ----written in English A: are B: have 为什么不用have? 详细点

half of his books ----written in English A: are B: have 为什么不用have? 详细点
如果想用完成时的话,也应该是have been written
因为书是被写完的

这个是被动语态 当然要有Be 动词 如果你硬要用上have的话 应该用 have been 这里的关键不是时态 是 被动语态