We have been living here for 12 years.(改同义句）

We have been living here for 12 years.(改同义句） they have been living here for four and a half years同义句 My uncle has been living here for twenty years.(改为同义句） 英语同义句转换题目原句：We have lived here for 15 years.改：We have lived 同义句转换：we have been friends for 10 years He has been here for two weeks改同义句He has been here ( )two we We have been collecting stamps for five years.(同义句转换） ①We have been learning English for three years.(改为同义句） I have lived here for 5 years I have been living here for 5 I have been living here for 2 years I have lived here for 2y They have been in army for ten years.(改同义句) _____ _____ ten The Smiths (have been living) here for ten years 为什么不能用 have