He is talking so much about America as if he(had been)there.为什么不用has been?

单句改错He is talking so much about America as if he has been there Andy likes talking with people,so he is going to be a ( ) he keeps talking about how beautiful you are he is so lucky to have you heard alot about you这三句 He is talking so much about America as if he(had been)there.为什么不用has been? 英语翻译He inhabitants,authorities,productions,towns,public depots and arsenals,and even private stores,are all in its favor.It is not ordinarily so abroad.Lines of operations in rich,fertile,manufacturing regions offer to the assailants muc h gr He is talking on the phone.翻译 stop talking .he is (hard) to study He is talking to a customer ------Tom is so glad today.He is talking with others h______ all the time.------He must have something great. let us go and ask about it he is so cool he is so sick Who is he talking with?With whom is he talking?两句哪一句对啊. who is he talking about?同义句 ___ ___ is he talking? He is talking so much about America as if he ___ there.A.had been B.has been C.was D.were为什么选A不选B? he is very___,because he likes talking and laughing. the man _ mr.he is talking to is so he is和so is he so does he和so he does的区别 5.He is talking so much about America as if he____ there.A.had been B.has been C.was D.has gone选什么,为什么呢?