题目内容：
Part ADirections:
Restrictions on the use of plastic bags have not been so successful in some regions. “White pollution ”is still going on. Write a letter to the editor(s) of your local newspaper to
1)give your opinions briefly and,
2) make two or three suggestions
You should write about 100 words. Do not sign your own name at the end of the letter. Use "Li Ming" instead. You do not need to write the address.(10 points)
参考答案：
答案解析：