the postman never fails to come on time everyday.
Had it not been for your……（如果没有你的……），I would not have done……（我就不会……）
Weather permitting
Your being willing to take me into consideration
Guilty and embarrassed，I sincerely apologize to you.
You''d better avoid talking to others while chewing the food.
It is the ceremony that falls on 1st October.
Not only do the nurses want a pay increase，they also want holidays.
Never will I go to school unless the shower passes.
In front of the teaching building stands a tree.
形容词/副词+as+主语+be动词
Young as she is ，she has commanded of 7 languages
The sky has been polluted seriously by human beings.