在下列具体句子中，as it happened中的it能不能用？为什么呢？Swan《英语用法指南》中的这4个句子，没it则都是对句，有it则都是错句。为何不能有it?1.The train might be late，as it happened
yesterday. 上面这句为何不能有it?下边各句，都是...
As we know that
individual is unique as his thumb print.As we know that...可以单独成一句话吗？（不做任何状语）我一直认为，As we know， individual is unique as his thumb print. 这样才是对的，可是原句不是这样。
Most adult children provide every bit as much care and support to their aging parents as was the case in the “good old days”.这句话中as从句是定语从句还是比较状语从句，它在句子中作成分吗，另外句子为什么没有主语？是省略了吗？感谢解答
1．Reform has been vigorously opposed , perhaps most notoriously in
education , where charter schools , academies and merit pay all faced drawn-out
battles.问题：请教老师，perhaps most notoriously这个副词词组在整句话中，作状语吗？如果是，这种好像类似补充的，...
As
they had brought a spear gun with them, they had plenty to eat. They caught
lobster and fish every day，and, as one of them put it 'ate like kings'. When
a passing tanker rescued them five days later, both men were genuinely sorry
that they had to leave.老师：这是新概念3-12课。1）lobs...
...is a human being. Babies seem to have a natural tendency to the human face as potentially rewarding.请教老师，这句话的as potentially rewarding是什么成分，而且as做啥词性呢，怎么连起来的，百思不得其解！
As it is often said that "a year's plan starts with spring",
farmers start to sow seeds at this time to lay the foundation for a good
harvest for the year.首先这里的 as 不可能引导定语从句，因为从句不缺成分，而as引导定语从句时一般充当从句中的主语或宾语，...
新概念三21课里有一句话：They were known as prizefighters对于这句话的结构理解，有点模糊不清，请老师指教理解1：主语they，谓语 were known , as
prizefighters 介词短语作主语补语。理解2： (在本网站查的其他类似例子）主语they, 谓语系...