The Arabian Nights _____ well known all over the world, in which many a story_____ interesting and instructive.
I ___________come yesterday, but I couldn’t.
If I ____________out of my ink, I would have finished writing the paper.
The professor gave orders that the test ___________before 5:30.
The possibility of a way out of the impasse(僵局) had never ____________ to anyone.
I appreciated ____ the opportunity to study abroad two years ago.