[单项选择]The first baby in Britain to survive a heart transplant celebrated her 18th birthday yesterday. Kaylee Davidson was five months old when she received a new heart during a (47) operation at the Freeman Hospital, Newcastle upon Tyne, in 1987. Now fit and healthy, she studies performing arts at a college in Sunderland and is in training to (48) Britain at the World Transplant Games in Canada this summer. Miss Davidson, who admitted that she was "looking forward to my first (49) drink", will be the guest of honor (嘉宾) tomorrow at a charity ball which is being held to mark her coming of age. "I am living (50) that people can make a difference by becoming an organ donor," she said. "I was only five months old when I had my transplant, just a tiny baby. I wasn’’t given much chance, but the doctors were (51) and I was lucky enough to grow stronger and stronger." Her mother, Carol Davidson, 37 yesterday (52) that for the first few weeks of her daughter’’s life all h