As PM2.5 readings reached as high as 900 in some cities, people are more _____ to get lung cancer in such conditions.
Our bodies are strengthened by taking exercises. ____, our minds are developed by learning.
The computer, ______________ help we human beings have stepped into the information age, should be made full use of to promote the social development.
Customers are asked to make sure that they ____ the right change before leaving the shop.
Because the two countries were at _____ war, the people had ______ hard life.
—-______ —Certainly, it is my great pleasure.