Every evening after dinner, if not ________ from work, I will spend some time walking my dog.
Europe has achieved more in controlling the AIDS virus than Asia in the past ten years, ________ the number of people infected with the virus is going up sharply.
With the development of agriculture, the people ________ village I taught are now living a happy life.
The archaeologists found gold coins and pottery in the lowest level of the site ________ they reached three months ago.
Gone are the days ________ we spent together in the mountainous village.
________ is known to us all, our government has spared no efforts to control food prices.