How long has that factory been ____ It's been open ____ several years.选项下面A opening,for B opened,since C opened for D open,since 为什么选D?

-How long has his father worked in that city?-he has worked there s___ last year. 用括号里的词回答:1.How long has your sister been working here?(June)2.How long has that man been waiting?(twenty minutes)3.How long has that woman been sitting there?(8:30)4.How long has that boy been talking on the phone?(five minutes)5.How How long ___ it taken you to write that article?该用has还是does? how long has the meeting()?AbegunBstartedCoverDlasted 是how long has she been learning…还是how long has been she learning… 为什么是How long has he been there 而不是How long has he gone there it has long been known that How long( )you( )(play) on that computer? How long has she been dead?=How long _ _ _ she 翻译How long has this food store been in business? How long has he been in the hospital?翻译 How long has it been since.这是什麼用法 意思 填空:How long has Mr.Black been t_______in this school? how long has your brother () the new dictionaryAborrowedBlentC boughtDhad how long has your father worked in the company? (改错)How long has Lu Xun died?怎么改呢? How long has the hous been on fire i want to know___there A.how long she has been B.how long she has gone 选哪个?