have you been doing just that for the last 10 years为什么要加 been呢?又为什么要加 just

what you have been doing What have you been doing lately? have been doing sth Celia asks,What have you been doing these days?Celia asks () I () been doing those days. What have you been doing 怎么用recent添 Whatever have you been doing with yourself,Watson? Where have you been?What _____ A.did you do B.have you been doing C.have made D.were you doing这个怎么选,为什么, have been doing 神马意思? what have you been doing lately?请帮忙分析下这问句中的been和doing做什么成分 has been doing have been done区别 have been doing ,have done和have doing区别 帮我看看这个句子错在哪~How many exercises have you been doing?How many exercises have you been doing?这个句子错在哪``` i has been doing 还是i have been doing What have you been doing s__ I saw you last time? by the way,what have you been doing.是宾语从句吗?what have you been doning 是什么现在完成时吗by the way,what you have been doing.这样行吗 你写完了作业么?Have you finished your homework?为什么是have done而不是have been doing? How long have you been doing是什么时态的句子?这个时态怎样构成? So what else have you been doing?你一直在做什么?是这样翻译么?