For this part, you are allowed 30 minutes to write a short essay entitled Traffic Problems
in Big Cities in three paragraphs. For the first two paragraphs, the first sentence is given and you may just write on to complete them. As to the remaining part, you are required to work out a topic sentence and develop it into a well organized paragraph and your composition should end with the concluding statement given below (Sentence 3).
1. Traffic is one of the essential activities for people in big cities.
2. Owing to the major part it plays, traffic has long been a serious concern for the local governments.
3. Only when these problems are effectively solved, will a major city be able to survive the nationwide competition and function as an economic center.