During the construction of the Qinghai-Tibet Railway, 33 migration overpasses have been made_______for herds of Tibetan antelopes to go through their breeding grounds.
Alice received an invitation from her boss,__________ came as a surprise.
Paper is __________ great Chinese contribution to human civilization.
Read this story,__________ you will realize that not everything can be bought with money.
It was __________ that we wanted to stay here for another two days.
The suspect's fingerprints on the gun were the main __________ against him.