ran, at once , spare, wrong, surprise, passing, how Joe was driving along a main road late one night. Suddenly something became 46 with his car wheel( 轮胎 ). He did not know what to do and, worse still, he did not have a spare wheel with him! Joe shouted to 47 cars, but not even one of them stopped. At last, he tried a car just like his own. To his 48 the car stopped and a young woman got out. Joe felt hopeless because he didn’t think she could help him. The lady, however, gave him her own 49 wheel, but Joe had to say that he had never changed a wheel in his life! She began to work 50 and fitted( 安装 ) the wheel in a few minutes.