It took them ____to visit our school.中间填这个 one and a half hour为什么_英语解答

It took them ____to visit our school.
中间填这个 one and a half hour为什么用这个?
急用!

人气：139 ℃　时间：2019-10-06 18:17:45

解答

加s
表达的意思是他们花费了一个半小时参观我们学校
一个半小时one and a half hours或者one and half an hour