(单选题)
In the booming city of Rio De Janeiro, a luxury hotel ( ) trash into treasure for more than a decade, long before food waste was at the forefront of anyone's mind.
A.had been turning
B.has been turning
C.was turning
D.is turning
参考答案:A
参考解析:
观察题干可知turn into这个动作发生在was之前,故应当使用过去完成时had done结构,选项BCD排除。根据题干句意“豪华酒店变废为宝”可知这个动作会一直进行下去,故综合考量应当结合be doing使用,所以出现了had been doing结构。故本题正确答案选A。
知识点:动词时态语态 英语 语法串讲 通用 英语
