Too many private cars _______ the serious pollution of the air.
举一反三
- One of the main reasons for air pollution is that many cars _______ smoke into the atmosphere.
- Which one could be a possible thesis statement? A: The importance of combating air pollution B: It is important to take every possible means to prevent air pollution on the earth. C: Many cars produce millions of tons of carbon dioxide each year. D: Air pollution is a serious problem in all the countries in the world.
- Private cars really provide____(convenient) to people, but meanwhile they cause too many problems.
- Now the pollution caused by increasing number of cars ___________ more and more serious in many cities. A: ecome B: ecame C: is becoming D: had become
- Now the air pollution in this city ______ more and more serious with each passing day.