Question

The country life he was used to______greatly since the opening policy.

A. changed
B. has changed
C. changing
D. having changed

Answer 1

答案B
此题考查考生对句子结构的分析理解能力。此题中he was used to为定语从句，对the country life进行修饰，所要选的内容应为句子的谓语动词，故排除C、D，而since通常用于现在完成时态。故选答案为B。