This painting is so valuable that it is rather difficult to calculate _______ its price would be if the museum _______ to sell it.
—Have you had a chance to wear your new shirt yet? —_____. I’ve been meaning to exchange it for a larger size.
We are more_____ how he won the Oscar award for the best director.
He has always been reminded _____ the virtues of patience by his father, yet he tends to lose his temper all the time.
Soon after _____ home, it began to rain.
The situation was very dangerous; the enemies were attacking us _____.