Question

【题目】--- Look! Some people are running the red lights.

--- We should wait ______ others are breaking the rule.

A. if B. unless C. although D. because

Answer 1

【答案】C

【解析】句意：-看！一些人在闯红灯。-虽然别人都在违反规则，但是我们应该等。if如果，引导条件状语从句；unless除非，如果不；although虽然，尽管，引导让步状语从句；because因为，引导原因状语从句。根据句意可知应选C。