阅读理解 A：I once heard someone shout, “Look out．” I put my head out of the window and a bucketful(一桶)of water fell on me．It seems that “Look out” may mean “Don’t look out”． B：I was once on a ship and heard the captain(船长)shout, “All hands on deck(甲板)．” I put my hands on the deck and someone walked on them． C：I once called early on an English friend and the servant who came to the door said, “He’s not up yet．Come back in half an hour．” When I went again for him, she said, “He’s not down yet．” I said, “If he’s neither up nor down．Where is he?” | 
