专题二 考点03 介词和介词短语(B卷)
一、填空
1.Please come _________ your convenience.
2._____terms of population, China is the largest country in the world, followed by India.
3._________ pollution levels on the rise, the Environmental Protection Committee is searching for ways to fight the problem.
4.When we judge his performance, I think we should take his age _______ account.
5.The young man, who was the only man _______ the spot, was told to set down what he saw.
6.Underground water is ________ average, which