【正确答案】Dear Editor,
I am writing this letter to attract your attention to the fact that despite restrictions on the use of plastic bags, people in some regions are still using the bags as they used to. As a result, "White Pollution" still keeps worsening our environment.
To prevent this situation from being further aggravated, I would like to offer several practical suggestions. Firstly, it is high time for us to ban the free use of disposable plastic bags. Secondly, degradable and renewable materials rather than plastics should be used to produce bags. Thirdly, the mass media should help to enhance people's awareness of the harm of the plastic bags.
I hope that my suggestions are helpful. Thank you for your attention.