Those who were able took advantage of the opportunities for success and happiness that presentedthemselves.able后为什么没有to?还有请翻译一下这句话.

be able do 的结构正确吗?eg.Those who were able to took advantage Those who are able to work were given jobs.(Those who are able to work) were given jobs.括号内不是主语从句吗?为什么是定语从句 Those who were able took advantage of the opportunities for success and happiness that presentedthemselves.able后为什么没有to?还有请翻译一下这句话. 《大学英语精读》句子成分分析.Those who were able took advantage of the opportunities for success and happiness that presented themselves.希望能分析的透彻一点.我不明白were able后面为什么没有to啊?怎么看这个句 Who planted the trees from which those figs were picked? Those who were allowed to wayward years, called youth.是什么意思? 同位语从句分析We were most impressed by the fact that even those patients who were not told of their serious illness were quite aware of its potential outcome.But for many, the fact that poor people are able to support themselves almost as wel 分析同位语从句We were most impressed by the fact that even those patients who were not told of their serious illness were quite aware of its potential outcome.But for many,the fact that poor people are able to support themselves almost as well the helicopters were able to rescue all but one of those aboard.请问这句怎么翻译 These students are committed to the cause of helping those who are not able to help themselves The party is _____________the idea of helping those who are not able to help themselves.(commit to) for those of you who were born in the year of the The rich man liked making freends with those who were poor and learned.中文? There were no seats__ for those who arrived latea enoughb availablec sufficientd supplied The building is a m____ to those who were killed in the war those who went to dance last weekend were---young people Aususally Bespecially Cmostly Dnormally 英译汉（准确）Now I think in the current financial crisis, we've seen examples where highly analytical knowledge workers were able to snow their bosses a little bit. The most successful organizations have been those who've said, 'If you're a m 这句话中down time的意思是什么?I was very proud to be able to make a difference to those who were experiencing some 'down time'这句话中down time的意思是什么 为什么加引号 （是不是加了引号意思就有所不同） 顺便