— When______ you______ the smart hat?— While my parents were waiting for the plane at the airport.A. did, buy B.do,buy C.were,buying
—Thanks so much for telling me the ways of learning English well. —________. Keep on and you’ll succeed.
—Do you know ________? —Yes, he came here by subway last night.
—How nice the old Chinese book! —I bought it online last week. It ________ in ancient China.
—Tina, would you mind turning down the radio? I ________ on the phone. —Oh, sorry, mom.
—To avoid ________ the same mistake, what should I do? —You’re supposed to copy the mistake twenty times.