.--- What are you going to do next?--- To write a science story about outer space ___ by Science and Technology Press.
All of ______ sudden someone shouted, “It is time to put ______ end to the meeting.”
The lady said she would buy a gift for her daughter with _____.
_____ she was sick, I was expected to take his place greatly surprised me, for I didn’t have much work experience.
—Did you have any difficulty catching yesterday’s lecture?—No. The professor spoke very clearly to make his speech easy _____.
After months of voyage, Columbus arrived in _____ later proved a new continent.