中文谷AIDSissaid
- 习题库
- 关注：1.42W次
问题详情：
AIDS is said __________the biggest health challenge to both men and women in that area over the past few years. A．that it is B．to be C．that it has been D．to have been
【回答】
D
知识点：不定式
题型：选择题
标签：
AIDSissaid
- 文章版权属于文章作者所有，转载请注明 https://zhongwengu.com/exercises/ml4wme.html
