The animal is ______; we must do something to save it.
.World Expo 2010 Shanghai China, a grand-scale global event, has ______ the significant theme “Better City, Better Life.”
.It was the practice _____ he got abroad _____ made him a good English speaker.
.—What _____ this time tomorrow morning? —Er…, I’m not sure for the moment.
.No important progress was made in the UN Climate Conference in Copenhagen as ______ of the rich countries agreed to offer large amounts of money to fight global warming.
A number of people suffer ill effects from drugs ______ they take the drug exactly as directed.