---- What about _____ lecture? ---- It’s too tiring, as is known, _____ lecture for me.
This meeting room is a non-smoking area. I would like to warn you___________ that if you smoked here you would be fined.
He is so stubborn that once he makes up his mind , nothing can change it;_______, it’s no use arguing with him.
____________Li Bai, a great Chinese poet, was born is known to the public, but some won’t accept it.
The park was full of people_________ themselves in the sunshine.
What is known to all is that up to now China has made a great___________ to preserving the peace.