Five out of twenty of the students have passed the flight test.
问题描述：
Five out of twenty of the students have passed the flight test.
答
意思就是“在二十个参加了航空考试的学生中,有五个通过了”
five out of twenty of the students也就是 5/20 或者刚才我翻译的 20进5,
要说主语,其实真正的重点在那个 five 上,就是“那五个考过的人”是主语
如果还有问题可以找我~