In the past ten years many football clubs(had)(have)been run as business 是填哪一个 为什么~

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In the past ten years many football clubs(had)(have)been run as business 是填哪一个 为什么~

这句话是用 had 因为他说的是在过去的十年中,说的是过去的过去,所以用过去完成时.

had 过去完成时

had