At first Bob was puzzled by Virginia s waving, but then it _____ his mind that she was trying to tell him something.
_______ you have got used to it , you’ll like it .
We’ll carry the work through , cost _______ it may .
Persist to the end , _______ you are the only one left.
He always talks _______ he had been to outer space.
You’d better come back earlier _______ it is getting colder.