spend用法i spent one hour and a half ____________ this bool ye

spend用法i spent one hour and a half ____________ this bool ye half a sandwich,half hour,one and a half hour.这些half的用法都不相同, You spent one and a half( ),but i only took one half ( ) one and a half hours 还是hour I often spend noe hour and a half (该填的)my homework in the ev one and a half hours 和 an hour and a half 就是说 超过一个小时候 hour One and a half an hour 和An hour and a half 有什么不同 i spend one and a half hours on my homework.（保持原意） I spend about one and a half hours doing my homework every d one and a half hours?还是one and a half hour? 是one and a half hours还是one and a half hour 一个半小时 英语：是one and a half hour 还是 one and a half hours