Ten years had passed. I found she had _______. 

 In Scandinavian countries it is common ____ for the husband to stay at home to look after the baby.

 There is a(n) ________ of peace and calm in the country, quite different from that of a big city.

The police always take ________ of dogs’ sharp sense of smell to search for the survivors in the earthquake.

26. He asked us to write an article in_____________ of pollution caused by the nearby factories.