They put forward a lot of plans at the meeting, but none of _______ were carried out in their work.
I apologize if I _______ you, but I assure you that it was unintentional.
________ take the aeroplane all the way, they decided to fly to Vancouver and then take the train from west to east across Canada.
He could not have the murderer ________ away with killing those innocent people.
The fact is that I earned my passage by working as an unpaid hand, which _______ my appearance.
_______ is even important is ______ as the earth cooled down, water began to appear on its surface.