英语语法:让步句型

Though/Although he is rich, (yet/still) he doesn’t show off.
Yang as he is, he know a lot of things.
Even if/though he succeeded, he was not proud.
No matter what you say, I’ll still try to do it.
Keep calm, whatever happens.
In spite of this, we must go ahead with our plans.
Regardless of all the difficulties, we’ll fight it out to the end.