八个半小时的车程用英语怎么说,两种说法

Question

是短语,
Eight and a half hours's car journey.
回答者：￠十片落叶°♀
是不是应该把hours's 写成hours'
是否有两种说法呢?
等待中!

Answer 1

Eight and a half hours' car journey. （只有一个s）

Answer 2

Eight and a half hours's car journey.

Answer 3

The car journey took 8 and a half hours.

I travelled 8 and a half hours by car.

Answer 4

a one-half-and-eight-hour trip