Question

【题目】【2015湖南】That's why I help brighten people's days. If you ________， who's to say that another person will?

A.didn't B.don't

C．weren't D．haven't

Answer 1

【答案】B

【解析】考查动词的时态。根据主句中another person will可知，此处隐含将来的动作，但是条件状语从句中通常用现在时表示将来的动作。故选B。句意：这就是我为什么为别人的生活增添乐趣。如果你不这样做的话，天知道还会有谁做。