Question

【题目】Wars are disasters. A large number of people will lose their homes if a war ________.

A. breaks out B. is broken out

C. breaks down D. is broken down

Answer 1

【答案】A

【解析】

试题本题考查if引导的条件状语从句如果主句是将来时，从句用一般现在时；break out动词短语爆发；句意：战争是灾难。如果战争爆发，有许多人会失去他们的家园。结合语境可知选A。