Gun control is a subject __________ Americans haveargued for a long time.
—What’s the matter with Paul?—A letter from his parents in New Jersey _________ as attack of homesickness.
His way of teaching English was _________ make his classes lively and interesting.
—Time flies! The wonderful party is over. We'll have to part.—No need to feel blue. _________
Kate had paid him in advance, which _________ was a mistake.
—Is this the painting _________ you offered $ 1,000 for on the Internet?—Yes, I will give you 15% discount if you like it.