最近见到几种特殊的从句，一，You may depend on it that tomorrow will be fine.二，I take it that he will succeed.三，I appreciate it when you ask me for help.以上三个句子中的it都是形式主语，请老师帮忙分析一下此类用法，谢谢！！！
...ans to build the world's first tidal
lagoon off Swansea Bay is a hard blow for Wales. the tidal lagoon project，had
it gone ahead，was expected to creat 2200jobs.在这句话中, had
it gone ahead是否为省略if的倒装虚拟？意思是指如果如果继续开展这个项目，将会创造2200...
1. It was a big step forward for us to have all of
our documents in one place.
请问老师为什么forward这个副词可以修饰前面的step呢？副词为什么可以修饰名词呢？
2. suggest doing sth，doing 表示的是一个动作吗？动名词的词性是名词，为什么后面又...
Even the Ontario Community Council has determined that lowering the BAC would mean more work for police and the courts. blood alcohol concentration (BAC)这个是专用名词。请问下lowering 是什么词性和成分 谢谢
Chinese children grow up with warnings (warn) not to waste single grain of rice, out of respect for farmers' labor.这个空格填写warning不可以么？像这样的一些抽象名词又可以具体化的单词，该怎样来判断他们的单复数呢？谢谢！
...有时引申指人们的日常活动。如：I
don’t know his movements this week. 我不知道他本周的活动安排。※真题例句※Both
the hand movements and the very idea
of communicating without speaking attracted
me. 手部运动和恰巧是那种不说话的交流方式的想法都...
...yes. The whole city was covered with green trees, making it green city. At
this moment, I found the city was so interested. How I regret ignore its beauty
before!这是一篇短文改错题，看最后一句：How I
regret ignore its beauty before!答案告诉我这句没有错误。但我有2个疑...
...a threw the burnt
piece into the sink and put in the other slice of bread. This time, she turned
down the fire so it cooked nicely. Then Jeff noticed steam
shooting out of the pot and the lid starting to shake. The next minute, the
porridge boiled over and put out the fire. Jenna panicked. Thankfull...