-He didn’t go to the concert yesterday, did he?-______.He was busy studying for the tests all day.
—This dress was out of style. —I think it still looks nice.
—I havelearning math and I'm so worried. Could you help me? —Sure. I'd be glad to.
—I hear Mario never tells a lie. —That's right. He is anboy.
—is the population of your factory? —It has apopulation because it's a new factory.
—How long? —For two years.