Have you got any explanation to the question ___ he came here for last weekend?
The factory was built in a secret place, around ______ high mountains.
The telephone _______ three times in the last hour, and each time it ________ for my father.
The ______ has become extremely tense. A war could break out any time between the two sides.
“Aha, you’re a chain smoker!” “Only at home. Nobody _______ that but you.”
In order to learn the _______ of the family business, Bill took a job as messenger boy in one of the offices.