【推荐1】最近人们讨论的一个热点话题就是2020年高考的推迟对学生是否是有益处的。
A hot topic ___ ___ ___ ___ the postponement of the National Unified Examination for Admissions to General Universities and Colleges in 2020 is beneficial to students.

【推荐3】关于选择谁当经理的问题现在正在讨论中。
The question about whom to choose as manager ________________ now.

【推荐3】我们最近对一所高中的150名学生进行了关于他们每天能睡多长时间的调查。
We have made a survey recently about ________ among 150 students in a senior high school.

【推荐1】这次艰难的经历会改变他的人生。
This challenging experience ________________ his life.

【推荐2】Grandma has taken good care of the children all these years. (用现在完成时的被动语态完成句型转换)
The children ________________________ by Grandma all these years.