In his youth, Ma Yun finally attended Hangzhou Teacher's Wap版

试题详情及答案解析

In his youth, Ma Yun finally attended Hangzhou Teacher's Institute he failed the entrance exam twice

A．unless	B．after
C．since	D．until

答案：B

试题分析:句意：在年轻的时候，经过两次高考失败后，马云最终进入杭州师范学院学习。A unless 除非；B after在之后； C. since自从； D until直到。根据句意选B。
考点：考查状语从句