Goodnight, sweet Prince. And flights of angels sing thee to thy rest.老师，to thy rest是作状语修饰谓语，还是作thee的定语？介词短语能作代词的定语吗;不定式，动名词等非谓语短语都不能作代词（除人称代词外的代词）的定语吗？
He lost balance, staggered back against the rail and toppled over.老师您好，我想请教一下：这里的against the rail可否和“back"一起看作一个副词短语，还是说看作两个状语，都是修饰staggered呢？十分感谢老师的回答！
The intensity of our protein obsession can only be understood as part of a wider series of diet battles that go back half a century. 这里没有用go back to是因为这个短语是一般接具体的时间点，这里half a century做时间状语表示这半个世纪以来都是如此？
...ork)我的困惑是：（a）If only 是否也可以单纯表示类似于If引导的条件句，如果...？（b）上面3句是if only表愿望的，疑惑是：为什么1）If only = hope ? 而2）和3）If only = wish ? (c) 2）句书上说=I am sorry he dri...
...n all. 请教各位老师；whatever如果这里作连接形容词，which引导的两个定从这里修饰动名词taking吗？那么whatever taking
now的主谓语在哪里？如何理解whatever taking now which is
`O' level , which is... is nine subjects in all.这句话的意思？
From then on, he was recognized as an artist of preternatural abilities, not only as a composer but also as a pianist and conductor.请问这里的not only as a composer but also as a pianist and conductor.是作什么成分？状语还是同位语？