Question

【题目】It was nearly a week _______ the rescue team located the crashed plane.

A. since B. before

C. until D. after

Answer 1

【答案】B

【解析】

考查时间状语从句。A. since自从；B. before在……之前；C. until直到；D. after在……之后。句意：救援队花了将近一周的时间才找到坠毁的飞机。It is/was+一段时间+before表示“距某发生有……的时间”，故B项正确。