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A. off B. to C. outside D. from ( )6. The key is used for ____ the door. A. open B. opening C. to open D. opened ( )7. Please ____ the blackboard carefully. A. looked at B. look on C. looking at D. look at ( )8. Where ______are you going to visit? A. other B. other thing C. else D. else’s ( )9. Don’t leave ______you have finished it. A. until B. after C. when D. if ( )10. Don’t fet ______the lights. A. to turn down B. to switch up C. to close D. to turn off Ⅳ . 閱讀理解,根據短文內容選擇正確答案。 Mark Twain was asked one day if he could remember the first money he ever earned .He thought a long time before answering, and then said , “Yes, it was at school , I can remember everything about it. Scho