> 有关“包被”的文章
  • been是什么时态的标志?

    been是什么时态的标志?

    have been 是现在完成时,had been 才是过去完成时,been的时态要根据上下文而定。 例句 His wallet had been rifled. 他的钱包被偷了。 These figures have...

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