Granny often tells us _____ water in our daily life.
—Do you know ____ in America?—Sure. It's the third Sunday of June.(2014,云南)
—I don't know ____ or not.—Neither do I.You may ask his teacher.
I didn't know ____.
—What did your father say?—He asked us ____.
—Could you tell me ____?—Sure. Walk straight along this street and you'll find it.