. — Why were you so late for work today? — to the office was not very easy this morning b

问题补充：

. — Why were you so late for work today?

— to the office was not very easy this morning because of the traffic.

A. Drove

B. Driving

C. I drove

D. What I drove

答案：

A. Drove

(答案→)B. Driving

C. I drove

D. What I drove

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