_______ such a good chance, he planned to learn more.
Unless they are programmed by humans, computers are nothing more than big pieces of metal. But once _____ what to do, they show extraordinary power in carrying it out.
—Mr. Smith, I wonder if I could take Friday off? — ______? It’s a bit difficult with so many people away on holiday, you know.
After five days’ climbing in the mountain, they reached ____ they thought was the place they’d been dreaming of.
I’m moving to the countryside because the air there is much fresher than ____ in the city.
--- Can I call for some friends and spend the day outside with them, Mom? --- ____ I’ve told you to have a weekend on your own.