We have stayed here for two days(改为否定句)为什么是We (haven't) (stayed) here for two days.而不是填hadn't stay

We have stayed here for two days(改为否定句)为什么是We (haven't) (stayed) here for two days.而不是填hadn't stay By the time he arrives in Beijing, we ________ here for two days.A. will be arriving B. have been stayingC. have stayed D. will have stayed They have stayed here since 1999(对since 1999提问)（）（）（）they stayed here? They have stayed here for two hours.(句意不变)They have stayed here _____ two hours _______. They have stayed here since 1999.（对划线部分since 1999提问）_____ _____ _____ they stayed here? I___in the countryside for two weeks and I really have no idea what is happening here.A have stayed Bhave been staying C stayed D had stayed 原因 英语单项选择,1.By the time he arrives in Beijing,we ________ here for two days.A.will have stayed B.shall stay C.have been staying D.have stayed 2.According to the American federal government,residents of Hawaii have the longest life ________:7 by the time you arrive in london,we ___in europe for two weeksA will have stayed B have stayed how long have you been here 和 how long have you stayed here 的区别请问英语高手们,how long have you been here 和 how long have you stayed here 有什么区别? They have stayed here for two months.(改为否定句） They_____ ______here for two months. 求歌名,其中的歌词Lucky we feel like everyway.Lucky have stayed where we've here we lessons have连词成句 We have a wonderful time_____our stay here. 请教高人翻译what have we here, what do we have here today we have lessons here.怎么翻译? we have () water here,please save it 我要求教2道英语选择题.1.We ____wite each other ever since we met three years ago.A got in touch with B have stayed in touch with C have got in touch with D kept in touch with 2.Are you still here you were here half an hour ago who _____for