Question

【题目】— Why was he unhappy yesterday?

— A letter from home ______ an attack of homesickness.

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

Answer 1

【答案】A

【解析】

句意：——昨天他为什么不高兴？——从家里寄来的信引起了思乡之情。set off出发，引起；set out开始，set about开始，set up建立。结合句意，此处表示引起了思乡之情，故选A。