题目内容
（请给出正确答案）
提问人：网友l******8
发布时间：2023年2月8日 21:40
[填空题]
The Chinese once used about 3, 000, 000, 000 plastic shopping bags (1) , and they have caused pollution of the (2) . The bags have become a main cause of plastic (3) because they are not easy to break and people throw them away (4) . So the Chinese people are encouraged to bring their own bags for (5) .
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