Have you been in this lab before?解释Have been这句话是现在完成时,意思是“你之前来过这个实验室吗?” 我不解的是,been不是be的过去分词吗?那为什么在这句话里会有“来”的意思,be不是am is are吗..

Have you been in trouble? Have you been in there?写成Have you been there? where have you been in Garden How long have you been in China? have you been in love 的意思 have you been in the army You have been died in my eyes Have you been in ?这个句子对吗? Have you been in my love. you have been remembered in my I Have Been In You 歌词 if you have been in?翻译 You may have been in my heart. 春光乍泄 I have been in you 歌词 You pretending you have never been in my heart Have you been in force.i bear you a long Have you ever been in America?和Have you ever been to America?什么区别 在现在完成时中have you been in与have you been to有什么区别