What did Mr Jones do before he moved here?He___a city bus for over twenty-five years.A.has driven B.drove C.drives D.is driving

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What did Mr Jones do before he moved here?He___a city bus for over twenty-five years.
A.has driven B.drove C.drives D.is driving

A
for + 一段时间 是现在完成时的标志

错啦!是B.但是不晓得为什么。谁能详细的回答呢