关于现在完成时请问“我已经游泳两个小时了.”该怎么说?1.I have swum for two hours.2.I h

他们已经工作两个小时了.They have been working for two hours.They have w I have have lunch for 2 hours 我已经吃过午饭2个小时了,是这么说吗 I have been sitting here for three hours.我在这坐了三小时.可否说成I sat I painted it in two hours.我画它花了两个小时的时间、 为什么用In? I have math for two hours对画线部分提问(划线部分是for two hours ) I have a basketball for two hours.对for two hours进行提问 after class i have （）for two hours. hours,for,volleyball,I,two,have,usually(.)连词成句 After class I have g____ for two hours After class I have -----for two hours.(填空） after,I,volleyball,have,two,class,for,hours I have been down for two hours.改为同义句