The first use of atomic weapons was in 1945, and their power __________ increased enormously eversince.
Nowadays people are more concerned about the environment ________ they live.
In spite of all ________ has been said, quite a lot of people are still uncertain about the prices of housing in China.
Many people tried to leave the country, ________ there was much violence and a serious shortage of food supply.
Nissan's plants in Zhengzhou and Guangzhou, ________ operate in cooperation with Dongfeng Motor Corp., remained closed.
When you are done with the book, go out for a walk or ________.