The old lady doesn’t have any children. She lives _________ in a _________ house.
——How do you study for a test? ——I study by .
——Did Lily use to be short? ——________, but he is tall now.
——Could you tell me how to get to the Yellowstone National Park from here? ——_________.Maybe you can ask the policeman over there.
——Could I ask you a few questions? ——___________.
Which of the following animals lives only on grass? A.B.C.D.