对two hours提问 和对 for two hours提问 都是用how long吗 为什么

对two hours提问 和对 for two hours提问 都是用how long吗 为什么 I watced TV for two hours last Sunday .对画线for two hours 提问. she sings for two hours every day.对for two hours 提问 He does sports for two hours every day.(对for two hours 提问） We can eat for two hours here.对划线部分提问 划线部分：for two hours I have a basketball for two hours.对for two hours进行提问 I have math for two hours对画线部分提问(划线部分是for two hours ) the students play volleyball (for two hours)对括号提问 she usually dances for two hours对画线提问 对for two hours提问,用什么词 L dance for two hours every day.对two hours 提问 We play volleyball for two hours.(对划线部分提问)划线部分是 two hours We play volleyball for two hours.（对划线部分提问）划线部分是two hours I watch Tv for two hours every day 中对for two hours提问两种方法 知道的 she always dances for two hours.(对划线部分提问,划线部分为for two hours） we will leave for Shanghai in two hours.对in two hours提问.（）（）（）you leave for Shanghai? I stayed in the room for two hours yesterday.（对划线部分提问）for two hours he`s been studying there for two whole hours对划线部分提问.划线部分：for two whole hours