Question

Lucy switched on the engine and the car _______ in a cloud of dust.

A. set out                  B. set about               C. set off                   D. set down

Answer 1

C

解析:

set off意为“出发；动身；开始跑”；set up意为“建立”；set about意为“开始；着手”；set down意为“写下；记下”。