I have studied French since the day I came here.请问应该怎么翻译?

I have studied French since the day I came here.请问应该怎么翻译? I have ____ here since you came here. 翻译.I have writtrn home four times since I came here. this is the first film i have seen since i came here.中间填that i have known him since he came here I have studied English or three years since I had come here. 请问这里有错误吗?Since I came to the United States, I not only have I have studied here （ ）many years ago. A. since B. for C, be I have lived here _twenty years since i came to beijing with i_______in this school since i moved here 1.came to 2.have b Twenty years ______ passed since I came here.填的是 have 还是 has 有个小错I HAVE GOT TO KNOW HIM SINCE HE CAME HERE.( )改成( )