动词填空。 Two men were traveling in a lonely part of America. For days they 1___________ (not see) even a house, only a few wood huts (木房子). Then one day they 2____________ (meet) an old Indian. They hoped that they could use their own language 3____________ (talk) with him. One of them had a little conversation with him and asked him, 'Could you tell us what the weather 4____________ (be) like in the next two days?' 'Oh, yes,' he said. 'Rain 5____________ (come), and so is wind. Then there 6____________ (be) a heavy snow for two days, but after that the sun will be shining brightly.' 'Isn't that wonderful?' said the man to his friend. 'These old Indians 7____________ (know) many of the secrets of Nature than we do with all our science.' Then he 8____________ (turn) to the old man. 'Tell me how you 9___________ (know) all that.' 'It 10_____________ (hear) over the radio this morning.' The Indian answered.