[题目]How long do you guess it will be we graduate from senior high school?A. when B. before C. until D. since 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】How long do you guess it will be ________ we graduate from senior high school?

A. when B. before C. until D. since

【答案】B

【解析】

试题分析：状语从句的考查。句意：你猜我们还要过多久才能高中毕业呢？这句话考查了连词before 的用法。It +be + 时段+ before + 从句（多久之后……才）所以B为正确选项。

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