Some Martian rock structures look strikingly like structures on Earth
that are known ______ by microbes.A. having been createdC. to have been createdC是正确答案,可是A和C都可以表示非谓语的动作先于谓语动词的动作,为什么不能选A?
You fail to recognize that it matters not what someone is born, but what they grow to be.这里面的you are to recognize是主谓宾,that和but引导的并列宾补,我理解的对?what 在句中做什么成分为什么not可以否定它?
Westerners think in "prose", each sentence or paragraph following from the proceding.翻译为:西方人的思维是“散文”式的,每一个句子、每一段落都承接前一句或前一段。这句的following,为什么是-ing形式,谢谢!
... crucial that the dancer learns to use all the different parts of the body in separation from each other so that, for instance,while the whole of the rest of the body was still, they could move just a hand from the wrist or the shoulder.请问这句长句中,加黑部分为什么要用过去式?...
Most core measurement analyses done on shales are currently performed with a crushed rock sample following the procedure established in the GRI (Gas Research Institute) study on shales .这句话中following 后接了从句,但网上搜不到相关解释,请老师解答。