题目

I moved to a new neighborhood two months ago. In the house with a large    36    across the road lived a taxi driver, a single parent with two school-age children. At the end of the day, he would    37    his taxi on the road. I    38    why he did not park it in the garage. Then one day I learnt that he had another car in his garage. In the afternoon he would come home from    39   , leave his taxi and go out for his    40    affairs in his other car, not in his taxi. I felt it was    41   . I was curious to see his personal car but did not make it until I  列竖式计算下面各题，并验算。474÷6 504÷9=