C

阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写1个恰当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

Since people can’t always eat out or cook for ____17____ (they), they get takeout or order delivery. More takeout and more food delivery equal more waste, especially plastic waste. That includes cups, bottles, and bags, most of ____18____ are only good for one use. That’s a big problem and it is getting even ____19____ (bad). The use of those plastics ____20____ (increase) by 300% since 2019. The world won’t survive if this situation continues.

17.  _____

18. _____

19.  _____ 

20. _____