A.
To make the car ‘roar down the arcade’, the driver must have .
a. accelerated 加速
b. speed 加快动作和工作的进程 speed up
Eg: We’d better speed up, if we want to get there in time.
d. reversed:倒车
Eg: The car reversed through the gate.

这题纯粹是词语辨析.建议查字典,查英英字典.