-- _____is that used for?---_____ the floor.
He was sent to Australia _______ when he was ten years old.
Though he had tried to swim across the English Channel, he didn’t _______.
I don’t know why he has been absent _______ class for so long.
The best way to deal with these bad habits is not to _______ the habit in the first place.
_______ is better to love than _______.