Tom has been in this company ___he left school. A. when B. since C. as soon as D. whether选C不行吗?

hello.this is tom.is jack in?sorry.he___for a month.A has been B go C is going D has gone.选词填空.加解析. Tom got sick last May and has been in bed since then.为什么has been 而不是had been Tom has been in this company ___he left school. A. when B. since C. as soon as D. whether选C不行吗? 英语翻译This house has been built in 1996. 翻译How long has this food store been in business? it has been 2 years___my sister studied in this school audio in this system has not been enabled什么意思 where in city he has been this 连词成句 Has this car been run in yet?run Tom has been in China for three years.(改为同义句)1.Tom has been in China ( ) three years( ).2.Three year ( ) ( ) ( ) Tom cane to China.3.Tom ( ) ( ) China three years ( ).4.It is ( ) ( ) ( ) Tom came to China. Tom has been in China for three years.(改为同义句)1.Tom has been in China ( ) three years( ).2.Three year ( ) ( ) ( ) Tom cane to China.3.Tom ( ) ( ) China three years ( ).4.It is ( ) ( ) ( ) Tom came to China. tom has been in the factory --- he left school.a.since b.as soon as Tom has been teaching in the vilage for ___（fair）a long time . there has been too much rain in china this year.为什么要用been? This account has been blocked. this file has been damage This IP has been banned 1.She has been skating for three years.(就划线部分提问）————————has she been skating?2.have been,this university,for,I,working,in,3 years.(连词成句)3.TOM从10岁就一直在集邮.TON--------------stamps since he was ten y