Tom, clean up the broken glass _________ someone walks on it.
Although he sometimes loses his temper, his students like him____for it.
It is said _______has been translated into Chinese.
The meeting was long and the speakers said ______nothing worth listening to.
The Titanic, the biggest ship of its day, ____ unsinkable, but it sank on its first voyage in 1912.
We'd better get up earlier than usual if we want to catch the train, ______?