中科新闻网类似于知乎的网站:一个英语单选
来源：百度文库 编辑：中科新闻网 时间：2024/07/05 20:47:26
____from heart trouble for years,Professor White has to take some medicine with him wherever he goes.
A Sufferd B Suffering C Having suffered D Being suffered
A Sufferd B Suffering C Having suffered D Being suffered
选C， for years表示持续很多年
B。。表示一直在suffer，这里不应用被动，所以不选D