（湖北省黄冈市黄州区一中2010届高三第二次月考） E The world's oceans are slowly getting more acidic,”say scientists. The researchers from California report that the change is
—I hear your grandpa has an old cup in your home. —Yes. It ______ drinking tea long ago and my grandpa _____ drink tea with it when he was young. A. was used for; was used to
