________ on their last legs, the enemies still thought they were unconquerable.
To enjoy the scenery, Sara would spend long hours on the train ______ travel by air.
The audience ______ when they heard the humorous story.
— What about ______ lecture you attended yesterday? — To tell the truth, it was too boring.I can’t stand ______ lecture like that.
From time to time a crocodile has snatched someone _______ he or she is even aware that the crocodile is there.
_____ unemployment and crime are high, it can be assumed that the latter is due to the former.