The country life he was used to_______greatly since the opening policy.A .changed B.has changed

分类: 作业答案 • 2021-11-20 10:09:04

问题描述：

The country life he was used to_______greatly since the opening policy.A .changed B.has changed
C.changing D.having changed.为什么?

答

since 常与现在完成时连用,主语COUNTRY LIFE 是单数,故用 has changed
另外,he was used to 作定语修饰LIFE