根据以下材料，回答题
We were late as usual.My husband had 21 watering the flowers in the garden by himself, and when he discovered that he couldn' t manage, he asked me for 22 at the last moment.So now we had only one hour to get to the airport.Luckily, there were not many cars 23 buses on the road and we were 24 to get there just in time.