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
问题描述：
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
答
错啦！是B.但是不晓得为什么。谁能详细的回答呢
答
A
for + 一段时间 是现在完成时的标志