what have they been doing 是什么时态

what have they been doing 是什么时态 What places have they been?怎么翻译? Where have they been? they shoud never do what they have been doing for many They have been _____ about what may have caused the fire.(theory) They have a____ been there they/have/what/do/(?) Because that is what they have been told all their life是啥意思 What they have has been given to you!如题,什么意思啊? what you have been doing What Could Have Been 歌词 - Do they want to remove all those ruins? -- No, they have been stopped.____ they can tell us!选what 解释一下 以及整个句子意思 What classes do they have where have they been?是现在完成时吗? they have been in kate's for they have been the subject of debate they have been acting up more lately they have been there before.so have i they have been there before.(),() 改为同义句