Question

【题目】If you don’t understand something, you may research, study, and talk to other people _______ you figure it out.

A. because B. though C. until D. since

Answer 1

【答案】C

【解析】考查连词。句意：如果你无法理解某个东西，你可能会研究，学习和他人探讨直到你解决为止。根据句意可知选C。