完形填空。 Two friends went to a city and 1 in a big hotel. Their room was on the 56th floor, and there was a fast lift, so they went up and down very 2 . They came back to the hotel very late one Saturday 3 ,and the liftman said to them,' The electricity (电) stopped today. You can't 4 the lift now, ' The two friends said. 'We 5 to go upstairs (上楼) to our room.' They left their coats downstairs because they were 6 , and began to climb. It took a 7 time, but they sang some interesting songs. At 12:00, they 8 the 56th floor. Then one of them put his hand in his pocket (口袋) and stopped. He said to 9 , 'Now. I'm going to sing the most interesting song of all. Its name is: I 10 the key to the room downstairs in my coat.' (     )l. A. ate (     )2. A. early (     )3. A. morning (     )4. A. climb (     )5. A. like (     )6. A. light (     )7. A.short (     )8. A. got to (     )9. A. the liftman (     )10. A. put B. slept B. easily B. afternoon B. see B. want B. beautiful B. little B. went up B. the other B. bought C. lived C. friendly C. night C. make C. have C. heavy C. long C. turned to C. the worker C. left D. played D. carefully D. time D. use D. start D. old D. lot D. walked down D. the businessman D. threw