问答题

Write a composition of about 150 words on the following topic:
It is now generally accepted that vehicles (cars, trucks, etc. ) are a major source of air pollution in cities. You are to suggest only ONE way to solve the problem.
ONE WAY TO SOLVE THE PROBLEM
You are to write in three paragraphs.
In the first paragraph, state what your suggested way is.
In the second paragraph, state one or two advantages of your suggestion.
In the last paragraph, bring what you have written to a natural conclusion.
Marks will be awarded for content, organization, grammar and appropriacy. Failure to follow the instructions may result in a loss of marks.