For years the workers have had to tolerate low wages这是个什么样的句式,语法怎么分析,For years the workers have had to tolerate low wages and terrible working conditions原句如此.为什么要用have had to?have to

同义句替换：The worker has lived here for 20 years.The worker ____ here 20 years ____. the worker has liwed here for twenty years____ A.since twenty years agoB.since he come hereC.twenty years ago D.twenty years before 原因啊 . the worker has gone home for the weekend 翻译 he has worker in the company for 15 years H ,he does not like the jobgen 根据句意及首字母填空要填的是years后面那个h开头的 s_______ of the worker went home for their spring festival my father has been a worker for ten years.(改为一般疑问句） I have been an engineer for more than ten years,but I was once a worker for three years.这里was once a worker 为什么不是had been a worker? ( )How long has your faher been a worker?A.In 1990 B.for 1990 C.since1990 D.since 20 years 英语翻译The worker,no less than the visitors ,is to answer for the fire. 《The Mirical Worker》观后感 The worker has lived here fortwenty years______ A,since twenty years ago B,since he came hereC,twenty years ago D.twenty years before The worker is so tired that he .have a rest.I play for a moment ?NO ,you mustn't.The boy is five years old ang he . dress himself now.You ... give up drinking for it's bad for your health.. I hand in the homewok now?NO, you needn't.用 can,ma The worker is so tired that he .have a rest..I play for a moment NO ,you mustn't.The boy is five years old ang he .dress himself now.You ...give up drinking for it's bad for your health..I hand in the homewok now?NO,you needn't.用 can,may,mu I'm(real)_sorry for the mistake our office worker made in the business last mouth 英语翻译for the last 20 years The Smiths ______ Beijing for years. the story happens for three years 关于英语语法的几道题目(objective和nominative)The manager for two years has been (he/him).The new members of the store's staff are Greg and (she/her).It is (they/them) who will clean up at closing.The fastest worker,however,is (he/him)