Generally, _____ to a university in western countries, international students need to prove their ability to speak English.
the word PM 2.5 ________ appearing in media reports, people pay greater attention to it and seek health tips for smoggy days.
-Wheredid you go _____ the morning of April 6-Ididn’t come to the office _____ the meeting was over.
6To our delight, the whole situation is ___________ our control and we have a good chance of winning the competition
We are not prepared to compromise _____ theprice of the computer