I saw the man ___ down and the driver ___away.

I saw the man ___ down and the driver ___away.
A、knocking; driven
B、knock; driving
C、knocked; driving
D、knocked; drive
【正确答案】：B
【题目解析】：knock”是终止性动词，不能用进行时形式。是终止性动词则用“see sb. did sth.”drive 是延续性动作，因此这里使用ing 形式，答案选B