Question

【题目】Talk to your teacher and you will get help ________ you have a problem.

A. if B. so C. until D. unless

Answer 1

【答案】A

【解析】

试题分析：句意：跟你的老师谈谈，如果你有问题你会得到帮助。If如果；so所以；until直到；unless除非。所以选A。