— It’s a long time ______I saw you last.— And what is a pity now that it will be a long time______ we see each other again.
John _____ knowledge of radio just by staying around the radio station.
They did not find _____ to prepare for the worst conditions they might meet.
The microphone enabled them to keep in touch, in other words, it made it _____ for them to contact each other.
She is making herself ill with _____ over her son's future.