I have been busy yesterday afternoon为什么要用have been busy而不用have busy主要想问的是什么时候现在完成时里动词前要用been,也就是have been ...例如还有 ：She has been sick since last month.

I have been very busy. james,you_____(do)your homework,right?yes,mon i have been busy with it for have been busy”与“I'm very busy”的区别 Yes,I have been missing you. 37.Would you have called her up had it been possible?Yes,but I ________ busy doing my homework.37.—— Would you have called her up had it been possible?Yes,but I ________ busy doing my homework.A.was B.were C.had been D.would be选啥?为啥? I have been busy yesterday afternoon为什么要用have been busy而不用have busy主要想问的是什么时候现在完成时里动词前要用been,也就是have been ...例如还有 ：She has been sick since last month. You look so tired .yes,I have been playing basketball i have been busy these days and i have to sleep ____ (little). Have you ever been a___?yes,I have been to the USA before 翻译I have been too busy to have any friend around. I don't have any e___ time.I've been quite busy these days 英语翻译i have been busy but it was my plan to message you soon.i promise —I hear that you have been busy getting ready for travelling ____.—Yes,what ____ you?A.two days ago , with B.recently,about C.from now on, fromD.this time,above I have been busy since yesterday.现在完成时是have加过去分词,但这里的过去分词在哪里?been busy 在这里又担当什么句子成分呢? Have you ever been to No.1 Middle School?a.Yes,I do b.Yes,I have c.No,ever Have you ever been to No1.Middle School?a.Yes,I do b.Yes,I have c.No,ever i have been busy getting ready for the camp since last week翻译一下. I have been very busy for the last few weeks youknow怎么翻译?