AIDS is said ______ the biggest health challenge to both men and women in that area over the past fe

题目简介

AIDS is said ______ the biggest health challenge to both men and women in that area over the past fe

题目详情

AIDS is said ______ the biggest health challenge to both men and women in that area over the past few years.
A.that it isB.to beC.that it has beenD.to have been
题型:单选题难度:偏易来源:不详

答案

D
句意:据说,在过去的几年中,艾滋病对于那个地区的男女来说已是最大的挑战。It is said to do / to be doing / to have done的形式。由此可淘汰A和C两项,由于句子的时间状语over the past few years要用完成时,所以淘汰B项。

更多内容推荐