-Were you swimming an hour ago? -No, __________.A. I am not B. I didn't C. I wasn'tD I am
— ______ is the library from our school?—It’s quite near. Just go ________ the road.
— Can you tell me ____________?— It happened at 3:00 pm.
— TV was invented in _________ century.— Is that true?
—When _________ personal computers _____________?—In 1976.
—Must I finish my work today?—No, you ____________. You _____________ finish it tomorrow.