--- Why were you so late for work today？

--- ________ to the office was very slow this morning because of the traffic.

A． Driving

B．I drove

C．To drive

D．That I drove

解释下面词语在不同语境中的含义。     

(1)见：见公输盘(    )           

             胡不见我于王(    )     

(2)虽：虽然，公输盘为我为云梯(    )           

             虽杀臣，不能绝也(    )     

(3)类：不可谓知类(    )           

             为与此同类(    )     

(4)为：公输盘为楚造云梯之械(    )             

             吾从北方闻子为梯(    )