【简答题】Hundreds of years ago, life was 1 harder than it is today. 2 People didn't have any modern machines, and there was no modern medicine, With the development of social economy, the 3 conditions of manki...
【简答题】A. Soil pollution. B. Water pollution. C. Air pollution. D. Sound pollution. 2. A. It is more polluted. B. It has fewer cars. C. It has clean air. D. It has less industry. 3. A. Industry. B. Cars. C. ...
【简答题】a. I intended to arrive earlier, but there were some (1) delay. b. The mistake can be (2) if you are more careful. c. (3) of er should not be regarded as lack of courage. d. Most pollution is ...
【简答题】找出下列句子中的谓语部分 1. The Earth Summit was held in Johannesburg in South Africa. 2. People burn wood and coal to cook food and stay warm. 3. Air pollution is also a big problem in very large cities, especia...