I didn't do very well in the exam, and so I’m afraid of ____.
It was not ______ he took off his dark glasses ______ I realized he was Liu Xiang.
Locked in his own study, Tony was annoyed for _____ the change earlier.
Hi, Susan, are you interested in buying some used books for school? You _____ really save some money that way.
_______teachers are required to take part in this relay race.
Among the problems is _____ they often failed to take into account that those people are more likely to use sunscreen.