_____ in beijing for more than twenty years , he knows the c

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_____ in beijing for more than twenty years , he knows the city very well.
A living B lived C having lived D to live
请问这题为什么不能选b?
为什么也不能选c？

因为整个句子的主语是he 他和住的关系是主动关系而不是被动关系
同时C表完成关系从从句中可知现在还是住在那
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再问：谢谢~那请问c也是主动，而且是完成时，为什么也不对呢？
再答：完成时是将来可能住也可能不住主句是一般现在时态从句也用相应的时态

_____ in beijing for more than twenty years , he knows the c He ______films in Asia for more than twenty years by the tim My uncle has worked in Beijing for more than twenty years.同义 Even though he has lived in China for more than twenty years More than twenty boys _____ (be) in the classroom. 1.some of the men have smoked for more than twenty years（改为同 The Whites_____(live)in China for more than five years My mother__(teach)Chinese for more than twenty years For more than twenty years scientists have been searching f My grenny has been in Beijing for 〔more than/over〕3years Having studied in university for 3 years,he knows the way ve mr green said he ( )in the school for about twenty years