Nicolaus Copernicus’ discovery about the universe is ______, which ______later achievements in astronomy science.
_____ the danger from the enemy action, people had to deal with a severe shortage of food, clothing, fuel and almost everything.
Why don’t you bring _____ to his attention that now students are bearing too heavy a learning load?
Managers in excellent companies have a strong _____ for doing things rather than talking about situations.
The new building will be built _____was a wasteland 30 years ago.
I’ve heard that the wood tower was built more than 1,000 years ago, so I think it is worthy ________.