大学英语四级
单选题The returned plastic bottles in New York used to _____.A end up somewhere undergroundB be turned to raw materialsC have a second-life valueD be separated from other rubbish
题目
单选题
The returned plastic bottles in New York used to _____.
A
end up somewhere underground
B
be turned to raw materials
C
have a second-life value
D
be separated from other rubbish
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