I have only been in America ____ two year.这道题答案为"for",这是为什么?

I have been in. I have been abroad only ____(两次) I have only been in America ____ two year.这道题答案为for,这是为什么? 英译中在线翻译I have only once been in trouble with the law. I have been there,have been 是have been in还是have been to的缩写? Hello ,mike ,Long time no see .Where are you Not only my parent but also I __WUhan for a month .A have gone to B have been to C has been in D have been in i have been studying history in china I Have Been In You 歌词 I have been in the Secret Love 春光乍泄 I have been in you 歌词 i have been in changsha now. I have been in 地点作文 I have __ the English club for only 3 days.< > A.joined B.become member of C.take part in D.been in I do not know from that day on, I do not know that day only, you have been hidden in my heart.翻译啊 Only you have been my only. I have been (i ) in keeping fish for two years i have never been here还是i have never been in here Never in my life ___ in that manner.A.have I been spoken to B.have I been spoken C.Ihave been spokenD.I have been spoken to