Question

【题目】He knew nothing about the accident _______ his friend told him.

A. ifB. sinceC. untilD. because

Answer 1

【答案】C

【解析】

句意：直到他朋友告诉他，他才知道这次事故。根据He knew nothing about the accident和his friend told him之间的关系，可知是not---until--- 直到……才……；if如果，since自从，until直到，because因为；故选C。