I have been collecting stamps since I was 7.Now I am 12.（合并为一句）I _____ _____ collecting stamps _____ _____ _____.

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I have been collecting stamps since I was 7.Now I am 12.（合并为一句）I _____ _____ collecting stamps _____ _____ _____.

I have been collecting stamps since I was 7.Now I am 12.（合并为一句）I _____ _____ collecting stamps _____ _____ _____.
I have been collecting stamps since I was 7.Now I am 12.（合并为一句）
I _____ _____ collecting stamps _____ _____ _____.

I have been collecting stamps since I was 7.Now I am 12.（合并为一句）I _____ _____ collecting stamps _____ _____ _____.
可改为：
I 【have】 【been】 collecting stamps 【for】 【five/5】【years】.
意为：我收集邮票已经5年了.

你好，正确答案是：
have been for five years
我一直在集邮已经5年了。
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I __have___ _been____ collecting stamps _for____ _five____ __years___。

I have been selling I have been trying I have ever been I too have been I have been to. I have been I have been in. I have been there,have been 是have been in还是have been to的缩写? i have always been there i have never been there I HAVE NEVER BEEN,能否说I never have been I have been so serious I have been so serious I-have-been-at-home I have always been you I have been loving you I have been a person . I have never been away! I have been wet through because i have been died.