分类：教育/科学-外语学习-英语考试
问题：一道英语选择题,请帮忙详细分析,非常感谢!Howareyouto 
How are you today?Oh.I___as ill as I do now for a very time.A.did not feel B.was not feeling .don not feel D.have not felt请选项出正确选项,并说明原因,非常感谢!
回答：答案应选D.have not felt 
根据for a very time 的<for>判断, 应选完成时态.