The truth, Sir, is that the old man____ across the street when my car hit him.
A. was to walk B. had been walkingC. walked D. was walking
The truth, Sir, is that the old man____ across the street when my car hit him.
A. was to walk B. had been walkingC. walked D. was walking
D
该题考查时态。表语从句中的主句用进行时态，从句由when引导表“突然发生意料不到的变化”。